Mercurial > hg > octave-lyh
annotate NEWS @ 17527:9ba1658843db
Fully int32 type support
| author | LYH <lyh.kernel@gmail.com> |
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| date | Fri, 27 Sep 2013 05:00:42 +0800 |
| parents | 55680de6a897 |
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| rev | line source |
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New GUI branch
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1 Summary of important user-visible changes for version 4.0: |
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2 --------------------------------------------------------- |
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3 |
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4 ** A new GUI is now available with Octave. |
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5 |
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implement local option for warnings
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6 ** Warning states may now be set temporarily, until the end of the |
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7 current function, using the syntax |
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8 |
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9 warning STATE ID "local" |
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10 |
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11 in which STATE may be "on", "off", or "error". Changes to warning |
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12 states that are set locally affect the current function and all |
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13 functions called from the current scope. The previous warning state |
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14 is restored on return from the current function. The "local" |
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15 option is ignored if used in the top-level workspace. |
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16 |
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17 Summary of important user-visible changes for version 3.8: |
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18 --------------------------------------------------------- |
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19 |
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20 ** Octave now uses OpenGL graphics by default with FLTK widgets. If |
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21 OpenGL libraries or FLTK widgets are not available when Octave is |
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22 built, gnuplot is used. You may also choose to use gnuplot for |
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23 graphics by executing the command |
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24 |
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25 graphics_toolkit ("gnuplot") |
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26 |
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27 Adding this command to your ~/.octaverc file will set the default |
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28 for each session. |
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29 |
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30 ** Octave now supports nested functions with scoping rules that are |
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31 compatible with Matlab. A nested function is one declared and defined |
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32 within the body of another function. The nested function is only |
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33 accessible from within the enclosing function which makes it one |
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34 method for making private functions whose names do not conflict with those |
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35 in the global namespace (See also subfunctions and private functions). |
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36 In addition, variables in the enclosing function are visible within the |
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37 nested function. This makes it possible to have a pseudo-global variable |
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38 which can be seen by a group of functions, but which is not visible in |
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39 the global namespace. |
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40 |
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41 Example: |
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42 function outerfunc (...) |
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43 ... |
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44 function nested1 (...) |
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45 ... |
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46 function nested2 (...) |
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47 ... |
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48 endfunction |
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49 endfunction |
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50 |
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51 function nested3 (...) |
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52 ... |
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53 endfunction |
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54 endfunction |
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55 |
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56 ** Line continuations inside character strings have changed. |
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57 |
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58 The sequence '...' is no longer recognized as a line continuation |
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59 inside a character string. A backslash '\' followed by a newline |
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60 character is no longer recognized as a line continuation inside |
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61 single-quoted character strings. Inside double-quoted character |
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62 strings, a backslash followed by a newline character is still |
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63 recognized as a line continuation, but the backslash character must |
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64 be followed *immediately* by the newline character. No whitespace or |
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65 end-of-line comment may appear between them. |
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66 |
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67 ** Backslash as a continuation marker outside of double-quoted strings |
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68 is now deprecated. |
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69 |
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70 Using '\' as a continuation marker outside of double quoted strings |
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71 is now deprecated and will be removed from a future version of |
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72 Octave. When that is done, the behavior of |
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73 |
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74 (a \ |
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75 b) |
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76 |
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77 will be consistent with other binary operators. |
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78 |
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79 ** Redundant terminal comma accepted by parser |
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80 |
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81 A redundant terminal comma is now accepted in matrix |
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82 definitions which allows writing code such as |
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83 |
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84 [a,... |
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85 b,... |
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86 c,... |
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87 ] = deal (1,2,3) |
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88 |
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89 ** Octave now has limited support for named exceptions |
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90 |
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91 The following syntax is now accepted: |
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92 |
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93 try |
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94 statements |
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95 catch exception-id |
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96 statements |
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97 end |
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98 |
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99 The exception-id is a structure with the fields "message" and |
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100 "identifier". For example |
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101 |
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102 try |
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103 error ("Octave:error-id", "error message"); |
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104 catch myerr |
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105 printf ("identifier: %s\n", myerr.identifier); |
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106 printf ("message: %s\n", myerr.message); |
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107 end_try_catch |
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108 |
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109 When classdef-style classes are added to Octave, the exception-id |
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110 will become an MException object. |
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111 |
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112 ** Warning IDs renamed: |
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113 |
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114 Octave:array-as-scalar => Octave:array-to-scalar |
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115 Octave:array-as-vector => Octave:array-to-vector |
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116 |
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117 ** 'emptymatch', 'noemptymatch' options added to regular expressions. |
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118 |
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119 With this addition Octave now accepts the entire set of Matlab options |
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120 for regular expressions. 'noemptymatch' is the default, but 'emptymatch' |
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121 has certain uses where you need to match an assertion rather than actual |
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122 characters. For example, |
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123 |
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124 regexprep ('World', '^', 'Hello ', 'emptymatch') |
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125 => Hello World |
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126 |
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127 where the pattern is actually the assertion '^' or start-of-line. |
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128 |
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129 ** For compatibility with Matlab, the regexp, regexpi, and regexprep |
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130 functions now process backslash escape sequences in single-quoted pattern |
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131 strings. In addition, the regexprep function now processes backslash |
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132 escapes in single-quoted replacement strings. For example, |
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133 |
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134 regexprep (str, '\t', '\n') |
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135 |
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136 would search the variable str for a TAB character (escape sequence \t) |
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137 and replace it with a NEWLINE (escape sequence \n). Previously the |
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138 expression would have searched for a literal '\' followed by 't' and |
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139 replaced the two characters with the sequence '\', 'n'. |
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140 |
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141 ** A TeX parser has been implemented for the FLTK toolkit and is the default |
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142 for any text object including titles and axis labels. The TeX parser is |
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143 supported only for display on a monitor, not for printing. |
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144 A quick summary of features: |
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145 |
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146 Code Feature Example Comment |
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147 _ subscript H_2O formula for water |
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148 ^ exponent y=x^2 formula for parabola |
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149 \char symbol \beta Greek symbol beta |
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150 \fontname font \fontname{Arial} set Arial font |
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151 \fontsize fontsize \fontsize{16} set fontsize 16 |
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152 \color[rgb] fontcolor \color[rgb]{1 0 1} set magenta color |
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153 \bf bold \bfBold Text bold font |
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154 \it italic \itItalic Text italic font |
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155 \sl slanted \slOblique Text slanted font |
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156 \rm normal \bfBold\rmNormal normal font |
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157 {} group {\bf Bold}Normal group objects |
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158 e^{i*\pi} = -1 complex example |
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159 |
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160 ** The m-files in the image directory have been overhauled. |
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161 |
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162 The principal benefit is that Octave will now no longer automatically |
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163 convert images stored with integers to doubles. Storing images as uint8 |
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164 or uint16 requires only 1/8 or 1/4 the memory of an image stored using |
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165 doubles. For certain operations, such as fft2, the image must still be |
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166 converted to double in order to work. |
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167 |
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168 Other changes include fixes to the way indexed images are read from a |
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169 colormap depending on the image class (integer images have a -1 offset to |
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170 the colormap row number). |
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171 |
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172 ** The imread and imwrite functions have been completely rewritten |
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173 |
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174 The main changes relate to the alpha channel, support for reading and |
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175 writing of floating point images, implemented writing of indexed images, |
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176 and appending images to multipage image files. |
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177 |
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178 The issues that may arise due to backwards incompatibility are: |
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179 |
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180 * imwrite no longer interprets a length of 2 or 4 in the third dimension |
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181 as grayscale or RGB with alpha channel (a length of 4 will be saved |
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182 as CMYK image). Alpha channel must be passed as separate argument. |
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183 * imread will always return the colormap indexes when reading an indexed |
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184 image, even if the colormap is not requested as output. |
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185 * transparency values are now inverted from the previous Octave versions |
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186 (0 is for completely transparent instead of completely opaque). |
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187 |
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188 In addition, the function imformats has been implemented to expand |
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189 reading and writing of images of different formats through imread |
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190 and imwrite. |
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191 |
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192 ** The colormap function now provides new options---"list", "register", |
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193 and "unregister"---to list all available colormap functions, and to |
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194 add or remove a function name from the list of known colormap |
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195 functions. Packages that implement extra colormaps should use these |
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196 commands with PKG_ADD and PKG_DEL statements. |
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197 |
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198 ** strsplit has been modified to be compatible with Matlab. There |
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199 are two instances where backward compatibility is broken. |
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200 |
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201 (1) Delimiters are now string vectors, not scalars. |
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202 |
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203 Octave's legacy behavior |
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204 |
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205 strsplit ("1 2, 3", ", ") |
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206 ans = |
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207 { |
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208 [1,1] = 1 |
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209 [1,2] = 2 |
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210 [1,3] = |
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211 [1,4] = 3 |
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212 } |
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213 |
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214 Matlab compatible behavior |
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215 |
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216 strsplit ("1 2, 3", ", ") |
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217 ans = |
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218 { |
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219 [1,1] = 1 2 |
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220 [1,2] = 3 |
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221 } |
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222 |
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223 (2) By default, Matlab treats consecutive delimiters are as a single |
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224 delimiter. By default, Octave's legacy behavior was to return an |
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225 empty string for the part between the delmiters. |
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226 |
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227 Where the legacy behavior is desired, the call to strsplit() may be |
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228 replaced by ostrsplit(), which is Octave's original implementation of |
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229 strsplit(). |
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230 |
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231 ** The datevec function has been extended for better Matlab compatibility. |
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232 It now accepts string inputs in the following numerical formats: 12, 21, |
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233 22, 26, 29, 31. This is undocumented, but verifiable, Matlab behavior. |
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234 In addition, the default for formats which do not specify a date is |
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235 January 1st of the current year. The previous default was the current day, |
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236 month, and year. This may produce changes in existing scripts. |
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237 |
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238 ** The error function and its derivatives has been extended to accept complex |
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239 arguments. The following functions now accept complex inputs: |
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240 |
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241 erf erfc erfcx |
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242 |
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243 In addition two new error functions erfi (imaginary error function) and |
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244 dawson (scaled imaginary error function) have been added. |
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245 |
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246 ** The glpk function has been modified to reflect changes in the GLPK |
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247 library. The "round" and "itcnt" options have been removed. The |
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248 "relax" option has been replaced by the "rtest" option. The numeric |
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249 values of error codes and of some options have also changed. |
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250 |
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251 ** The default name of the Octave crash dump file is now called |
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252 octave-workspace instead of octave-core. |
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253 |
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254 ** A citation command has been added to display information on how to |
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255 cite Octave and packages in publications. The package system will |
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256 look for and install CITATION files from packages. |
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257 |
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258 ** The java package from Octave Forge is now part of core Octave. The |
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259 following new functions are available for interacting with Java |
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260 directly from Octave: |
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261 |
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262 debug_java java_matrix_autoconversion |
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263 isjava java_unsigned_autoconversion |
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264 java2mat javaaddpath |
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265 javaArray javaclasspath |
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266 javaMethod javamem |
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267 javaObject javarmpath |
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268 usejava |
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269 |
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270 In addition, the following functions that use the Java interface |
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271 are now available (provided that Octave is compiled with support for |
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272 Java enabled): |
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273 |
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274 helpdlg listdlg questdlg |
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275 inputdlg msgbox warndlg |
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276 |
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277 ** Other new functions added in 3.8.0: |
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278 |
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279 atan2d erfi jit_startcnt |
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280 base64_decode expint lines |
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281 base64_encode findfigs linsolve |
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282 betaincinv flintmax polyeig |
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283 built_in_docstrings_file fminsearch prefdir |
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284 cmpermute gallery preferences |
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285 cmunique gco readline_re_read_init_file |
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286 colorcube hdl2struct readline_read_init_file |
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287 copyobj history_save rgbplot |
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288 dawson imformats save_default_options |
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289 dblist importdata shrinkfaces |
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290 debug_jit isaxes splinefit |
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291 desktop iscolormap stemleaf |
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292 doc_cache_create isequaln strjoin |
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293 ellipj jit_debug struct2hdl |
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294 ellipke jit_enable tetramesh |
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295 erfcinv waterfall |
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296 |
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297 ** Deprecated functions. |
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298 |
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299 The following functions were deprecated in Octave 3.4 and have been |
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300 removed from Octave 3.8. |
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301 |
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302 autocor dispatch is_global setstr |
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303 autocov fstat krylovb strerror |
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304 betai gammai perror values |
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305 cellidx glpkmex replot |
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306 cquad is_duplicate_entry saveimage |
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307 |
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308 The following functions have been deprecated in Octave 3.8 and will |
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309 be removed from Octave 3.12 (or whatever version is the second major |
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310 release after 3.8): |
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311 |
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312 default_save_options java_set |
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313 gen_doc_cache java_unsigned_conversion |
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314 isequalwithequalnans javafields |
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315 java_convert_matrix javamethods |
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316 java_debug re_read_readline_init_file |
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317 java_get read_readline_init_file |
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318 java_invoke saving_history |
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319 java_new |
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320 |
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321 The following keywords have been deprecated in Octave 3.8 and will |
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322 be removed from Octave 3.12 (or whatever version is the second major |
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323 release after 3.8): |
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324 |
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325 static |
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326 |
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327 The following configuration variables have been deprecated in Octave |
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328 3.8 and will be removed from Octave 3.12 (or whatever version is the |
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329 second major release after 3.8): |
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330 |
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331 CC_VERSION (now GCC_VERSION) |
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332 CXX_VERSION (now GXX_VERSION) |
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333 |
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334 The internal class <Octave_map> has been deprecated in Octave 3.8 and will |
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335 be removed from Octave 3.12 (or whatever version is the second major |
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336 release after 3.8). Replacement classes are <octave_map> (struct array) |
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337 or <octave_scalar_map> for a single structure. |
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338 |
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339 Summary of important user-visible changes for version 3.6: |
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340 --------------------------------------------------------- |
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341 |
| 14188 | 342 ** The PCRE library is now required to build Octave. If a pre-compiled |
| 343 package does not exist for your system, you can find PCRE sources | |
| 344 at http://www.pcre.org | |
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345 |
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346 ** The ARPACK library is no longer distributed with Octave. |
| 14188 | 347 If you need the eigs or svds functions you must provide an |
| 348 external ARPACK through a package manager or by compiling it | |
| 349 yourself. If a pre-compiled package does not exist for your system, | |
| 350 you can find the current ARPACK sources at | |
| 351 http://forge.scilab.org/index.php/p/arpack-ng | |
|
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352 |
| 14082 | 353 ** Many of Octave's binary operators (.*, .^, +, -, ...) now perform |
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354 automatic broadcasting for array operations which allows you to use |
| 14082 | 355 operator notation instead of calling bsxfun or expanding arrays (and |
| 356 unnecessarily wasting memory) with repmat or similar idioms. For | |
| 357 example, to scale the columns of a matrix by the elements of a row | |
| 358 vector, you may now write | |
|
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359 |
| 14082 | 360 rv .* M |
| 361 | |
| 362 In this expression, the number of elements of rv must match the | |
| 363 number of columns of M. The following operators are affected: | |
|
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364 |
| 14082 | 365 plus + .+ |
| 366 minus - .- | |
| 367 times .* | |
| 368 rdivide ./ | |
| 369 ldivide .\ | |
| 370 power .^ .** | |
| 371 lt < | |
| 372 le <= | |
| 373 eq == | |
| 374 gt > | |
| 375 ge >= | |
| 376 ne != ~= | |
| 377 and & | |
| 378 or | | |
| 379 atan2 | |
| 380 hypot | |
| 381 max | |
| 382 min | |
| 383 mod | |
| 384 rem | |
| 385 xor | |
|
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386 |
|
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387 additionally, since the A op= B assignment operators are equivalent |
| 14082 | 388 to A = A op B, the following operators are also affected: |
|
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389 |
| 14082 | 390 += -= .+= .-= .*= ./= .\= .^= .**= &= |= |
| 391 | |
|
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392 See the "Broadcasting" section in the new "Vectorization and Faster |
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393 Code Execution" chapter of the manual for more details. |
|
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394 |
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395 ** Octave now features a profiler, thanks to the work of Daniel Kraft |
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396 under the Google Summer of Code mentorship program. The manual has |
| 13262 | 397 been updated to reflect this addition. The new user-visible |
|
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398 functions are profile, profshow, and profexplore. |
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399 |
|
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400 ** Overhaul of statistical distribution functions |
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401 |
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402 Functions now return "single" outputs for inputs of class "single". |
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403 |
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404 75% reduction in memory usage through use of logical indexing. |
|
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405 |
| 14188 | 406 Random sample functions now use the same syntax as rand and accept |
|
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407 a comma separated list of dimensions or a dimension vector. |
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408 |
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409 Functions have been made Matlab-compatible with regard to special |
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410 cases (probability on boundaries, probabilities for values outside |
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411 distribution, etc.). This may cause subtle changes to existing |
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412 scripts. |
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413 |
| 14188 | 414 negative binomial function has been extended to real, non-integer |
|
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415 inputs. The discrete_inv function now returns v(1) for 0 instead of |
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416 NaN. The nbincdf function has been recoded to use a closed form |
| 14188 | 417 solution with betainc. |
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418 |
|
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419 ** strread, textscan, and textread have been completely revamped. |
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420 |
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421 They now support nearly all Matlab functionality including: |
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|
422 |
| 14082 | 423 * Matlab-compatible whitespace and delimiter defaults |
| 424 | |
| 425 * Matlab-compatible options: 'whitespace', treatasempty', format | |
| 426 string repeat count, user-specified comment style, uneven-length | |
| 427 output arrays, %n and %u conversion specifiers (provisionally) | |
|
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428 |
| 14082 | 429 ** All .m string functions have been modified for better performance or |
| 430 greater Matlab compatibility. Performance gains of 15X-30X have | |
|
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431 been demonstrated. Operations on cell array of strings no longer pay |
| 14082 | 432 quite as high a penalty as those on 2-D character arrays. |
|
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|
433 |
| 14082 | 434 deblank: Now requires character or cellstr input. |
| 435 | |
| 436 strtrim: Now requires character or cellstr input. | |
| 437 No longer trims nulls ("\0") from string for Matlab | |
| 438 compatibility. | |
|
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439 |
| 14082 | 440 strmatch: Follows documentation precisely and ignores trailing spaces |
| 441 in pattern and in string. Note that this is documented | |
| 442 Matlab behavior but the implementation apparently does | |
| 443 not always follow it. | |
| 444 | |
| 445 substr: Now possible to specify a negative LEN option which | |
| 446 extracts to within LEN of the end of the string. | |
| 447 | |
| 448 strtok: Now accepts cellstr input. | |
| 449 | |
| 450 base2dec, bin2dec, hex2dec: | |
| 451 Now accept cellstr inputs. | |
| 452 | |
| 453 dec2base, dec2bin, dec2hex: | |
| 454 Now accept cellstr inputs. | |
| 455 | |
| 456 index, rindex: | |
| 457 Now accept 2-D character array input. | |
| 458 | |
| 459 strsplit: Now accepts 2-D character array input. | |
| 13262 | 460 |
|
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7ff0bdc3dc4c
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|
461 ** Geometry functions derived from Qhull (convhull, delaunay, voronoi) |
| 14082 | 462 have been revamped. The options passed to the underlying qhull |
| 463 command have been changed for better results or for Matlab | |
| 464 compatibility. | |
| 465 | |
| 466 convhull: Default options are "Qt" for 2D, 3D, 4D inputs | |
| 467 Default options are "Qt Qx" for 5D and higher | |
| 468 | |
| 469 delaunay: Default options are "Qt Qbb Qc Qz" for 2D and 3D inputs | |
| 470 Default options are "Qt Qbb Qc Qx" for 4D and higher | |
|
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|
471 |
| 14082 | 472 voronoi: No default arguments |
| 473 | |
| 474 ** Date/Time functions updated. Millisecond support with FFF format | |
| 475 string now supported. | |
|
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476 |
| 14082 | 477 datestr: Numerical formats 21, 22, 29 changed to match Matlab. |
|
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478 Now accepts cellstr input. |
|
13848
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479 |
| 14082 | 480 ** The following warning IDs have been removed: |
|
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|
481 |
| 14082 | 482 Octave:associativity-change |
| 483 Octave:complex-cmp-ops | |
| 484 Octave:empty-list-elements | |
| 485 Octave:fortran-indexing | |
| 486 Octave:precedence-change | |
| 487 | |
| 488 ** The warning ID Octave:string-concat has been renamed to | |
| 489 Octave:mixed-string-concat. | |
|
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490 |
| 14082 | 491 ** Octave now includes the following Matlab-compatible preference |
| 492 functions: | |
| 13262 | 493 |
| 14082 | 494 addpref getpref ispref rmpref setpref |
| 13262 | 495 |
| 14082 | 496 ** The following Matlab-compatible handle graphics functions have been |
| 497 added: | |
|
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|
498 |
| 14082 | 499 guidata uipanel uitoolbar |
| 500 guihandles uipushtool uiwait | |
| 501 uicontextmenu uiresume waitfor | |
| 502 uicontrol uitoggletool | |
|
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|
503 |
|
13933
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504 The uiXXX functions above are experimental. |
|
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505 |
| 14082 | 506 Except for uiwait and uiresume, the uiXXX functions are not |
|
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507 supported with the FLTK+OpenGL graphics toolkit. |
|
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508 |
| 14082 | 509 The gnuplot graphics toolkit does not support any of the uiXXX |
| 510 functions nor the waitfor function. | |
|
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|
511 |
| 14082 | 512 ** New keyword parfor (parallel for loop) is now recognized as a valid |
| 513 keyword. Implementation, however, is still mapped to an ordinary | |
| 514 for loop. | |
|
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515 |
|
13792
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516 ** Other new functions added in 3.6.0: |
|
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517 |
|
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518 bicg nthargout usejava |
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519 is_dq_string narginchk waitbar |
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520 is_sq_string python zscore |
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521 is_function_handle register_graphics_toolkit |
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522 loaded_graphics_toolkits recycle |
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523 |
|
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524 ** Deprecated functions. |
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525 |
|
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|
526 The following functions were deprecated in Octave 3.2 and have been |
|
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527 removed from Octave 3.6. |
|
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528 |
|
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|
529 create_set spcholinv splu |
|
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530 dmult spcumprod spmax |
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|
531 iscommand spcumsum spmin |
|
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532 israwcommand spdet spprod |
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533 lchol spdiag spqr |
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534 loadimage spfind spsum |
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535 mark_as_command sphcat spsumsq |
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536 mark_as_rawcommand spinv spvcat |
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537 spatan2 spkron str2mat |
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538 spchol splchol unmark_command |
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539 spchol2inv split unmark_rawcommand |
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540 |
|
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541 The following functions have been deprecated in Octave 3.6 and will |
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542 be removed from Octave 3.10 (or whatever version is the second major |
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543 release after 3.6): |
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544 |
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545 cut is_duplicate_entry |
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546 cor polyderiv |
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547 corrcoef shell_cmd |
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548 __error_text__ studentize |
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549 error_text sylvester_matrix |
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550 |
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551 ** The following functions have been modified for Matlab compatibility: |
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552 |
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553 randperm |
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554 |
| 13251 | 555 Summary of important user-visible changes for version 3.4.3: |
| 556 ----------------------------------------------------------- | |
| 557 | |
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558 ** Octave 3.4.3 is a bug fixing release. |
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559 |
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560 Summary of important user-visible changes for version 3.4.2: |
|
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561 ----------------------------------------------------------- |
|
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562 |
|
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563 ** Octave 3.4.2 fixes some minor installation problems that affected |
|
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564 version 3.4.1. |
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565 |
| 12709 | 566 Summary of important user-visible changes for version 3.4.1: |
| 567 ----------------------------------------------------------- | |
|
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568 |
| 12709 | 569 ** Octave 3.4.1 is primarily a bug fixing release. |
| 570 | |
| 571 ** IMPORTANT note about binary incompatibility in this release: | |
|
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572 |
|
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573 Binary compatibility for all 3.4.x releases was originally planned, |
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574 but this is impossible for the 3.4.1 release due to a bug in the way |
|
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575 shared libraries were built in Octave 3.4.0. Because of this bug, |
|
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576 .oct files built for Octave 3.4.0 must be recompiled before they |
|
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577 will work with Octave 3.4.1. |
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578 |
| 12709 | 579 Given that there would be binary incompatibilities with shared |
|
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580 libraries going from Octave 3.4.0 to 3.4.1, the following |
|
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581 incompatible changes were also made in this release: |
| 12709 | 582 |
| 583 * The Perl Compatible Regular Expression (PCRE) library is now | |
| 584 required to build Octave. | |
|
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585 |
| 12712 | 586 * Octave's libraries and .oct files are now installed in |
| 587 subdirectories of $libdir instead of $libexecdir. | |
| 588 | |
| 12709 | 589 Any future Octave 3.4.x release versions should remain binary |
|
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590 compatible with Octave 3.4.1 as proper library versioning is now |
|
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591 being used as recommended by the libtool manual. |
| 12709 | 592 |
| 593 ** The following functions have been deprecated in Octave 3.4.1 and will | |
| 594 be removed from Octave 3.8 (or whatever version is the second major | |
| 595 release after 3.4): | |
| 596 | |
| 597 cquad is_duplicate_entry perror strerror | |
|
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598 |
| 12709 | 599 ** The following functions are new in 3.4.1: |
| 600 | |
|
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601 colstyle gmres iscolumn isrow mgorth nproc rectangle |
| 12709 | 602 |
| 603 ** The get_forge_pkg function is now private. | |
|
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604 |
| 12709 | 605 ** The rectangle_lw, rectangle_sw, triangle_lw, and triangle_sw |
| 606 functions are now private. | |
| 607 | |
| 608 ** The logistic_regression_derivatives and logistic_regression_likelihood | |
| 609 functions are now private. | |
|
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610 |
| 12739 | 611 ** ChangeLog files in the Octave sources are no longer maintained |
| 612 by hand. Instead, there is a single ChangeLog file generated from | |
| 613 the Mercurial version control commit messages. Older ChangeLog | |
| 614 information can be found in the etc/OLD-ChangeLogs directory in the | |
| 615 source distribution. | |
| 616 | |
|
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617 Summary of important user-visible changes for version 3.4: |
| 9352 | 618 --------------------------------------------------------- |
| 619 | |
|
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620 ** BLAS and LAPACK libraries are now required to build Octave. The |
|
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621 subset of the reference BLAS and LAPACK libraries has been removed |
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622 from the Octave sources. |
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623 |
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624 ** The ARPACK library is now distributed with Octave so it no longer |
|
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625 needs to be available as an external dependency when building |
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626 Octave. |
|
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627 |
| 10118 | 628 ** The `lookup' function was extended to be more useful for |
| 629 general-purpose binary searching. Using this improvement, the | |
| 630 ismember function was rewritten for significantly better | |
| 631 performance. | |
| 9352 | 632 |
| 633 ** Real, integer and logical matrices, when used in indexing, will now | |
| 634 cache the internal index_vector value (zero-based indices) when | |
| 635 successfully used as indices, eliminating the conversion penalty for | |
| 10118 | 636 subsequent indexing by the same matrix. In particular, this means it |
| 637 is no longer needed to avoid repeated indexing by logical arrays | |
| 638 using find for performance reasons. | |
| 9888 | 639 |
| 10118 | 640 ** Logical matrices are now treated more efficiently when used as |
| 641 indices. Octave will keep the index as a logical mask unless the | |
| 642 ratio of true elements is small enough, using a specialized | |
| 643 code. Previously, all logical matrices were always first converted | |
| 644 to index vectors. This results in savings in both memory and | |
| 645 computing time. | |
| 9480 | 646 |
| 10118 | 647 ** The `sub2ind' and `ind2sub' functions were reimplemented as compiled |
| 648 functions for better performance. These functions are now faster, | |
| 649 can deliver more economized results for ranges, and can reuse the | |
| 650 index cache mechanism described in previous paragraph. | |
| 651 | |
| 652 ** The built-in function equivalents to associative operators (`plus', | |
| 653 `times', `mtimes', `and', and `or') have been extended to accept | |
| 654 multiple arguments. This is especially useful for summing | |
| 655 (multiplying, etc.) lists of objects (of possibly distinct types): | |
| 9408 | 656 |
| 9449 | 657 matrix_sum = plus (matrix_list{:}); |
| 658 | |
| 10118 | 659 ** An FTP object type based on libcurl has been implemented. These |
| 660 objects allow ftp connections, downloads and uploads to be | |
| 661 managed. For example, | |
| 9880 | 662 |
| 10118 | 663 fp = ftp ("ftp.octave.org); |
| 664 cd (fp, "gnu/octave"); | |
| 665 mget (fp, "octave-3.2.3.tar.bz2"); | |
| 666 close (fp); | |
| 9880 | 667 |
| 10118 | 668 ** The default behavior of `assert (observed, expected)' has been |
| 669 relaxed to employ less strict checking that does not require the | |
| 670 internals of the values to match. This avoids previously valid | |
| 671 tests from breaking due to new internal classes introduced in future | |
| 672 Octave versions. | |
| 9449 | 673 |
| 674 For instance, all of these assertions were true in Octave 3.0.x | |
| 675 but false in 3.2.x due to new optimizations and improvements: | |
| 676 | |
| 677 assert (2*linspace (1, 5, 5), 2*(1:5)) | |
| 678 assert (zeros (0, 0), []) | |
| 679 assert (2*ones (1, 5), (2) (ones (1,5))) | |
| 9462 | 680 |
| 10118 | 681 ** The behavior of library functions `ismatrix', `issquare', and |
| 682 `issymmetric' has been changed for better consistency. | |
| 9873 | 683 |
| 10292 | 684 * The `ismatrix' function now returns true for all numeric, |
|
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|
685 logical and character 2-D or N-D matrices. Previously, `ismatrix' |
| 10292 | 686 returned false if the first or second dimension was zero. |
| 687 Hence, `ismatrix ([])' was false, | |
| 688 while `ismatrix (zeros (1,2,0))' was true. | |
| 9873 | 689 |
| 10118 | 690 * The `issquare' function now returns a logical scalar, and is |
| 691 equivalent to the expression | |
| 692 | |
| 693 ismatrix (x) && ndims (x) == 2 && rows (x) == columns (x) | |
| 694 | |
| 695 The dimension is no longer returned. As a result, `issquare ([])' | |
| 696 now yields true. | |
| 9873 | 697 |
| 10118 | 698 * The `issymmetric' function now checks for symmetry instead of |
|
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699 Hermitianness. For the latter, ishermitian was created. Also, |
| 10118 | 700 logical scalar is returned rather than the dimension, so |
| 701 `issymmetric ([])' is now true. | |
| 9873 | 702 |
| 10118 | 703 ** Function handles are now aware of overloaded functions. If a |
| 704 function is overloaded, the handle determines at the time of its | |
| 705 reference which function to call. A non-overloaded version does not | |
| 706 need to exist. | |
| 9873 | 707 |
| 10118 | 708 ** Overloading functions for built-in classes (double, int8, cell, |
| 709 etc.) is now compatible with Matlab. | |
| 9408 | 710 |
| 10323 | 711 ** Function handles can now be compared with the == and != operators, |
| 712 as well as the `isequal' function. | |
| 713 | |
| 10118 | 714 ** Performance of concatenation (using []) and the functions `cat', |
| 715 `horzcat', and `vertcat' has been improved for multidimensional | |
| 716 arrays. | |
| 10117 | 717 |
| 9547 | 718 ** The operation-assignment operators +=, -=, *= and /= now behave more |
| 10118 | 719 efficiently in certain cases. For instance, if M is a matrix and S a |
| 720 scalar, then the statement | |
| 9547 | 721 |
| 10118 | 722 M += S; |
| 9547 | 723 |
| 10118 | 724 will operate on M's data in-place if it is not shared by another |
| 725 variable, usually increasing both time and memory efficiency. | |
| 9547 | 726 |
| 9558 | 727 Only selected common combinations are affected, namely: |
| 9547 | 728 |
| 729 matrix += matrix | |
| 730 matrix -= matrix | |
| 9558 | 731 matrix .*= matrix |
| 732 matrix ./= matrix | |
| 733 | |
| 9547 | 734 matrix += scalar |
| 735 matrix -= scalar | |
| 736 matrix *= scalar | |
| 737 matrix /= scalar | |
| 9558 | 738 |
| 9552 | 739 logical matrix |= logical matrix |
| 740 logical matrix &= logical matrix | |
| 9547 | 741 |
| 10118 | 742 where matrix and scalar belong to the same class. The left-hand |
| 743 side must be a simple variable reference. | |
| 9888 | 744 |
| 10118 | 745 Moreover, when unary operators occur in expressions, Octave will |
| 746 also try to do the operation in-place if it's argument is a | |
|
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|
747 temporary expression. |
| 9589 | 748 |
| 10118 | 749 ** The effect of comparison operators (<, >, <=, and >=) applied to |
| 750 complex numbers has changed to be consistent with the strict | |
| 751 ordering defined by the `max', `min', and `sort' functions. More | |
| 752 specifically, complex numbers are compared by lexicographical | |
| 753 comparison of the pairs `[abs(z), arg(z)]'. Previously, only real | |
| 14188 | 754 parts were compared; this can be trivially achieved by converting |
| 755 the operands to real values with the `real' function. | |
| 9547 | 756 |
| 10118 | 757 ** The automatic simplification of complex computation results has |
| 758 changed. Octave will now simplify any complex number with a zero | |
| 759 imaginary part or any complex matrix with all elements having zero | |
| 760 imaginary part to a real value. Previously, this was done only for | |
| 761 positive zeros. Note that the behavior of the complex function is | |
| 762 unchanged and it still produces a complex value even if the | |
| 763 imaginary part is zero. | |
| 9826 | 764 |
| 10118 | 765 ** As a side effect of code refactoring in liboctave, the binary |
| 766 logical operations are now more easily amenable to compiler | |
| 767 optimizations and are thus significantly faster. | |
| 9595 | 768 |
| 10118 | 769 ** Octave now allows user-defined `subsasgn' methods to optimize out |
| 770 redundant copies. For more information, see the manual. | |
| 9595 | 771 |
| 10453 | 772 ** More efficient matrix division handling. Octave is now able to |
| 10118 | 773 handle the expressions |
| 9664 | 774 |
|
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775 M' \ V |
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776 M.' \ V |
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777 V / M |
| 9664 | 778 |
| 10118 | 779 (M is a matrix and V is a vector) more efficiently in certain cases. |
| 780 In particular, if M is triangular, all three expressions will be | |
| 781 handled by a single call to xTRTRS (from LAPACK), with appropriate | |
| 10453 | 782 flags. Previously, all three expressions required a physical |
| 10118 | 783 transpose of M. |
| 9664 | 784 |
| 10118 | 785 ** More efficient handling of certain mixed real-complex matrix |
| 786 operations. For instance, if RM is a real matrix and CM a complex | |
| 787 matrix, | |
| 9664 | 788 |
| 10118 | 789 RM * CM |
| 9664 | 790 |
| 791 can now be evaluated either as | |
| 792 | |
| 793 complex (RM * real (CM), RM * imag (CM)) | |
| 794 | |
| 795 or as | |
| 796 | |
| 797 complex (RM) * CM, | |
| 798 | |
| 10453 | 799 depending on the dimensions. The first form requires more |
| 800 temporaries and copying, but halves the FLOP count, which normally | |
| 801 brings better performance if RM has enough rows. Previously, the | |
| 802 second form was always used. | |
| 9664 | 803 |
| 11111 | 804 Matrix division is similarly affected. |
| 9664 | 805 |
| 10118 | 806 ** More efficient handling of triangular matrix factors returned from |
| 807 factorizations. The functions for computing QR, LU and Cholesky | |
| 808 factorizations will now automatically return the triangular matrix | |
| 809 factors with proper internal matrix_type set, so that it won't need | |
| 810 to be computed when the matrix is used for division. | |
| 9717 | 811 |
| 10118 | 812 ** The built-in `sum' function now handles the non-native summation |
| 813 (i.e., double precision sum of single or integer inputs) more | |
| 814 efficiently, avoiding a temporary conversion of the whole input | |
| 815 array to doubles. Further, `sum' can now accept an extra option | |
| 816 argument, using a compensated summation algorithm rather than a | |
| 817 straightforward sum, which significantly improves precision if lots | |
| 818 of cancellation occurs in the summation. | |
| 9717 | 819 |
| 10118 | 820 ** The built-in `bsxfun' function now uses optimized code for certain |
| 821 cases where built-in operator handles are passed in. Namely, the | |
| 822 optimizations concern the operators `plus', `minus', `times', | |
| 823 `ldivide', `rdivide', `power', `and', `or' (for logical arrays), | |
| 824 the relational operators `eq', `ne', `lt', `le', `gt', `ge', and the | |
| 825 functions `min' and `max'. Optimizations only apply when both | |
| 826 operands are of the same built-in class. Mixed real/complex and | |
| 827 single/double operations will first convert both operands to a | |
| 828 common type. | |
| 9745 | 829 |
| 10118 | 830 ** The `strfind' and `strrep' functions now have compiled |
| 831 implementations, facilitating significantly more efficient searching | |
| 832 and replacing in strings, especially with longer patterns. The code | |
| 833 of `strcat' has been vectorized and is now much more efficient when | |
| 834 many strings are concatenated. The `strcmpi' and `strncmpi' | |
| 835 functions are now built-in functions, providing better performance. | |
|
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|
836 |
|
8176c16628c8
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|
837 ** 'str2double' now has a compiled implementation and the API conforms |
|
8176c16628c8
doc: Add note about str2double API change to NEWS.
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|
838 to Matlab. The additional Octave-specific features of returning a |
|
8176c16628c8
doc: Add note about str2double API change to NEWS.
Rik <octave@nomad.inbox5.com>
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|
839 boolean matrix indicating which elements were successfully converted |
|
8176c16628c8
doc: Add note about str2double API change to NEWS.
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|
840 has been removed. |
| 10208 | 841 |
| 10453 | 842 ** Matlab-style ignoring input and output function arguments using |
| 11111 | 843 tilde (~) is now supported. Ignored output arguments may be |
| 844 detected from a function using the built-in function `isargout'. | |
| 845 For more details, consult the manual. | |
| 10886 | 846 |
| 10453 | 847 ** The list datatype, deprecated since the introduction of cells, has |
| 848 been removed. | |
| 10276 | 849 |
| 10453 | 850 ** The accumarray function has been optimized and is now significantly |
| 851 faster in certain important cases. | |
| 10054 | 852 |
| 10292 | 853 ** The behavior of isreal and isnumeric functions was changed to be more |
| 854 Matlab-compatible. | |
| 855 | |
| 10406 | 856 ** The integer math & conversion warnings (Octave:int-convert-nan, |
| 857 Octave:int-convert-non-int-val, Octave:int-convert-overflow, | |
| 11111 | 858 Octave:int-math-overflow) have been removed. |
| 10406 | 859 |
| 10453 | 860 ** rem and mod are now built-in functions. They also handle integer |
| 861 types efficiently using integer arithmetic. | |
| 10437 | 862 |
| 10536 | 863 ** Sparse indexing and indexed assignment has been mostly rewritten. |
| 864 Since Octave uses compressed column storage for sparse matrices, | |
| 865 major attention is devoted to operations manipulating whole columns. | |
| 866 Such operations are now significantly faster, as well as some other | |
| 867 important cases. | |
| 868 | |
| 869 Further, it is now possible to pre-allocate a sparse matrix and | |
| 870 subsequently fill it by assignments, provided they meet certain | |
| 871 conditions. For more information, consult the `spalloc' function, | |
| 872 which is no longer a mere dummy. Consequently, nzmax and nnz are no | |
| 11111 | 873 longer always equal in Octave. Octave may also produce a matrix |
| 874 with nnz < nzmax as a result of other operations, so you should | |
|
14093
050bc580cb60
doc: Various docstring improvements before 3.6.0 release.
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|
875 consistently use nnz unless you really want to use nzmax (i.e., the |
| 11111 | 876 space allocated for nonzero elements). |
| 10536 | 877 |
| 878 Sparse concatenation is also affected, and concatenating sparse | |
| 879 matrices, especially larger collections, is now significantly more | |
| 11111 | 880 efficient. This applies to both the [] operator and the |
| 10536 | 881 cat/vertcat/horzcat functions. |
| 882 | |
| 11111 | 883 ** It is now possible to optionally employ the xGESDD LAPACK drivers |
| 14188 | 884 for computing the singular value decomposition using svd, instead |
| 11111 | 885 of the default xGESVD, using the configuration pseudo-variable |
| 886 svd_driver. The xGESDD driver can be up to 6x times faster when | |
| 887 singular vectors are requested, but is reported to be somewhat less | |
| 10639 | 888 robust on highly ill-conditioned matrices. |
| 889 | |
| 890 ** Configuration pseudo-variables, such as page_screen_output or | |
| 891 confirm_recursive_rmdir (or the above mentioned svd_driver), now | |
| 892 accept a "local" option as second argument, requesting the change | |
|
11154
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|
893 to be undone when the current function returns: |
| 10639 | 894 |
| 895 function [status, msg] = rm_rf (dir) | |
| 896 confirm_recursive_rmdir (false, "local"); | |
| 897 [status, msg] = rmdir (dir, "s"); | |
| 898 ... | |
| 899 endfunction | |
| 900 | |
| 901 Upon return, confirm_recursive_rmdir will be restored to the value | |
| 902 it had on entry to the function, even if there were subsequent | |
| 903 changes to the variable in function rm_rf or any of the functions | |
| 904 it calls. | |
| 905 | |
| 11111 | 906 ** pkg now accepts a -forge option for downloading and installing |
| 907 packages from Octave Forge automatically. For example, | |
| 10774 | 908 |
| 909 pkg install -forge general | |
| 910 | |
| 11111 | 911 will automatically download the latest release of the general |
|
14093
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|
912 package and attempt to install it. No automatic resolving of |
| 11111 | 913 dependencies is provided. Further, |
| 10639 | 914 |
| 10774 | 915 pkg list -forge |
| 916 | |
| 917 can be used to list all available packages. | |
| 918 | |
|
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|
919 ** The internal data representation of structs has been completely |
|
b914e8125f1b
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|
920 rewritten to make certain optimizations feasible. The field data |
|
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|
921 can now be shared between structs with equal keys but different |
|
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|
922 dimensions or values, making operations that preserve the fields |
|
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|
923 faster. Economized storage is now used for scalar structs (just |
|
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|
924 like most other scalars), making their usage more |
|
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|
925 memory-efficient. Certain array-like operations on structs |
|
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|
926 (concatenation, uniform cellfun, num2cell) have gained a |
|
b914e8125f1b
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|
927 significant speed-up. Additionally, the octave_scalar_map class |
|
b914e8125f1b
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|
928 now provides a simpler interface to work with scalar structs within |
|
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|
929 a C++ DLD function. |
| 10639 | 930 |
|
12418
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|
931 ** Two new formats are available for displaying numbers: |
| 11111 | 932 |
|
12418
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|
933 format short eng |
|
b914e8125f1b
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|
934 format long eng |
| 11111 | 935 |
|
12418
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|
936 Both display numbers in engineering notation, i.e., mantissa + |
|
b914e8125f1b
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|
937 exponent where the exponent is a multiple of 3. |
|
10776
062304bd692e
Update NEWS with description of new engineering format for numbers.
Rik <octave@nomad.inbox5.com>
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10774
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|
938 |
|
12418
b914e8125f1b
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|
939 ** The following functions are new in Octave 3.4: |
|
12723
6ed1e0be181e
doc: Update NEWS with new functions for release 3.4.1
Rik <octave@nomad.inbox5.com>
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|
940 accumdim erfcx nfields pqpnonneg uigetdir |
|
6ed1e0be181e
doc: Update NEWS with new functions for release 3.4.1
Rik <octave@nomad.inbox5.com>
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|
941 bitpack fileread nth_element quadcc uigetfile |
|
6ed1e0be181e
doc: Update NEWS with new functions for release 3.4.1
Rik <octave@nomad.inbox5.com>
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|
942 bitunpack fminbnd onCleanup randi uiputfile |
|
6ed1e0be181e
doc: Update NEWS with new functions for release 3.4.1
Rik <octave@nomad.inbox5.com>
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|
943 blkmm fskipl pbaspect repelems uimenu |
|
6ed1e0be181e
doc: Update NEWS with new functions for release 3.4.1
Rik <octave@nomad.inbox5.com>
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|
944 cbrt ifelse pie3 reset whitebg |
|
6ed1e0be181e
doc: Update NEWS with new functions for release 3.4.1
Rik <octave@nomad.inbox5.com>
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|
945 curl ishermitian powerset rsf2csf |
|
6ed1e0be181e
doc: Update NEWS with new functions for release 3.4.1
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|
946 chop isindex ppder saveas |
|
6ed1e0be181e
doc: Update NEWS with new functions for release 3.4.1
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|
947 daspect luupdate ppint strread |
|
6ed1e0be181e
doc: Update NEWS with new functions for release 3.4.1
Rik <octave@nomad.inbox5.com>
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|
948 divergence merge ppjumps textread |
|
11109
41d18f6342f9
remove image_viewer function
John W. Eaton <jwe@octave.org>
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|
949 |
|
12418
b914e8125f1b
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|
950 ** Using the image function to view images with external programs such |
|
b914e8125f1b
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|
951 as display, xv, and xloadimage is no longer supported. The |
|
b914e8125f1b
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|
952 image_viewer function has also been removed. |
|
b914e8125f1b
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|
953 |
|
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|
954 ** The behavior of struct assignments to non-struct values has been |
|
b914e8125f1b
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|
955 changed. Previously, it was possible to overwrite an arbitrary |
|
b914e8125f1b
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|
956 value: |
|
11109
41d18f6342f9
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John W. Eaton <jwe@octave.org>
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|
957 |
|
12418
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|
958 a = 1; |
|
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|
959 a.x = 2; |
| 10873 | 960 |
|
12418
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|
961 This is no longer possible unless a is an empty matrix or cell |
|
b914e8125f1b
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|
962 array. |
|
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|
963 |
|
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|
964 ** The dlmread function has been extended to allow specifying a custom |
|
b914e8125f1b
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|
965 value for empty fields. |
| 10829 | 966 |
|
12418
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967 ** The dlmread and dlmwrite functions have been modified to accept |
|
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|
968 file IDs (as returned by fopen) in addition to file names. |
| 11111 | 969 |
|
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970 ** Octave can now optimize away the interpreter overhead of an |
|
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|
971 anonymous function handle, if the function simply calls another |
|
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972 function or handle with some of its parameters bound to certain |
|
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973 values. Example: |
|
b914e8125f1b
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974 |
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|
975 f = @(x) sum (x, 1); |
| 10966 | 976 |
|
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|
977 When f is called, the call is forwarded to @sum with the constant 1 |
|
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978 appended, and the anonymous function call does not occur on the |
|
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|
979 call stack. |
| 10829 | 980 |
| 12424 | 981 ** For compatibility with Matlab, mu2lin (x) is now equivalent to |
| 982 mu2lin (x, 0). | |
| 983 | |
| 984 ** The new function `history_control' may be used to control the way | |
| 985 command lines are added to the history list when Octave is using | |
| 986 readline for command-line editing. For example | |
| 987 | |
| 988 history_control ("ignoredups") | |
| 989 | |
| 990 tells Octave to avoid adding duplicate lines to the history list. | |
| 991 | |
| 992 ** Octave now uses the gnulib library for improved portability and to | |
| 993 avoid bugs in operating system functions. | |
| 994 | |
|
11112
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995 ** Deprecated functions. |
|
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|
996 |
|
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|
997 The following functions were deprecated in Octave 3.0 and have been |
|
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|
998 removed from Octave 3.4. |
|
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|
999 |
|
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|
1000 beta_cdf geometric_pdf pascal_pdf |
|
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1001 beta_inv geometric_rnd pascal_rnd |
|
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1002 beta_pdf hypergeometric_cdf poisson_cdf |
|
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|
1003 beta_rnd hypergeometric_inv poisson_inv |
|
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|
1004 binomial_cdf hypergeometric_pdf poisson_pdf |
|
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1005 binomial_inv hypergeometric_rnd poisson_rnd |
|
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1006 binomial_pdf intersection polyinteg |
|
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|
1007 binomial_rnd is_bool setstr |
|
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1008 chisquare_cdf is_complex struct_contains |
|
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|
1009 chisquare_inv is_list struct_elements |
|
8ea4cf59c41b
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|
1010 chisquare_pdf is_matrix t_cdf |
|
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|
1011 chisquare_rnd is_scalar t_inv |
|
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list deprecated and removed functions in NEWS file
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|
1012 clearplot is_square t_pdf |
|
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1013 clg is_stream t_rnd |
|
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1014 com2str is_struct uniform_cdf |
|
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|
1015 exponential_cdf is_symmetric uniform_inv |
|
8ea4cf59c41b
list deprecated and removed functions in NEWS file
John W. Eaton <jwe@octave.org>
parents:
11111
diff
changeset
|
1016 exponential_inv is_vector uniform_pdf |
|
8ea4cf59c41b
list deprecated and removed functions in NEWS file
John W. Eaton <jwe@octave.org>
parents:
11111
diff
changeset
|
1017 exponential_pdf isstr uniform_rnd |
|
8ea4cf59c41b
list deprecated and removed functions in NEWS file
John W. Eaton <jwe@octave.org>
parents:
11111
diff
changeset
|
1018 exponential_rnd lognormal_cdf weibcdf |
|
8ea4cf59c41b
list deprecated and removed functions in NEWS file
John W. Eaton <jwe@octave.org>
parents:
11111
diff
changeset
|
1019 f_cdf lognormal_inv weibinv |
|
8ea4cf59c41b
list deprecated and removed functions in NEWS file
John W. Eaton <jwe@octave.org>
parents:
11111
diff
changeset
|
1020 f_inv lognormal_pdf weibpdf |
|
8ea4cf59c41b
list deprecated and removed functions in NEWS file
John W. Eaton <jwe@octave.org>
parents:
11111
diff
changeset
|
1021 f_pdf lognormal_rnd weibrnd |
|
8ea4cf59c41b
list deprecated and removed functions in NEWS file
John W. Eaton <jwe@octave.org>
parents:
11111
diff
changeset
|
1022 f_rnd meshdom weibull_cdf |
|
8ea4cf59c41b
list deprecated and removed functions in NEWS file
John W. Eaton <jwe@octave.org>
parents:
11111
diff
changeset
|
1023 gamma_cdf normal_cdf weibull_inv |
|
8ea4cf59c41b
list deprecated and removed functions in NEWS file
John W. Eaton <jwe@octave.org>
parents:
11111
diff
changeset
|
1024 gamma_inv normal_inv weibull_pdf |
|
8ea4cf59c41b
list deprecated and removed functions in NEWS file
John W. Eaton <jwe@octave.org>
parents:
11111
diff
changeset
|
1025 gamma_pdf normal_pdf weibull_rnd |
|
8ea4cf59c41b
list deprecated and removed functions in NEWS file
John W. Eaton <jwe@octave.org>
parents:
11111
diff
changeset
|
1026 gamma_rnd normal_rnd wiener_rnd |
|
8ea4cf59c41b
list deprecated and removed functions in NEWS file
John W. Eaton <jwe@octave.org>
parents:
11111
diff
changeset
|
1027 geometric_cdf pascal_cdf |
|
8ea4cf59c41b
list deprecated and removed functions in NEWS file
John W. Eaton <jwe@octave.org>
parents:
11111
diff
changeset
|
1028 geometric_inv pascal_inv |
|
8ea4cf59c41b
list deprecated and removed functions in NEWS file
John W. Eaton <jwe@octave.org>
parents:
11111
diff
changeset
|
1029 |
|
8ea4cf59c41b
list deprecated and removed functions in NEWS file
John W. Eaton <jwe@octave.org>
parents:
11111
diff
changeset
|
1030 The following functions were deprecated in Octave 3.2 and will |
|
8ea4cf59c41b
list deprecated and removed functions in NEWS file
John W. Eaton <jwe@octave.org>
parents:
11111
diff
changeset
|
1031 be removed from Octave 3.6 (or whatever version is the second major |
|
8ea4cf59c41b
list deprecated and removed functions in NEWS file
John W. Eaton <jwe@octave.org>
parents:
11111
diff
changeset
|
1032 release after 3.2): |
|
8ea4cf59c41b
list deprecated and removed functions in NEWS file
John W. Eaton <jwe@octave.org>
parents:
11111
diff
changeset
|
1033 |
|
11390
7ca273af4309
Deprecate sphcat and spvcat functions.
Rik <octave@nomad.inbox5.com>
parents:
11330
diff
changeset
|
1034 create_set spcholinv splu |
|
7ca273af4309
Deprecate sphcat and spvcat functions.
Rik <octave@nomad.inbox5.com>
parents:
11330
diff
changeset
|
1035 dmult spcumprod spmax |
|
7ca273af4309
Deprecate sphcat and spvcat functions.
Rik <octave@nomad.inbox5.com>
parents:
11330
diff
changeset
|
1036 iscommand spcumsum spmin |
|
7ca273af4309
Deprecate sphcat and spvcat functions.
Rik <octave@nomad.inbox5.com>
parents:
11330
diff
changeset
|
1037 israwcommand spdet spprod |
|
7ca273af4309
Deprecate sphcat and spvcat functions.
Rik <octave@nomad.inbox5.com>
parents:
11330
diff
changeset
|
1038 lchol spdiag spqr |
|
7ca273af4309
Deprecate sphcat and spvcat functions.
Rik <octave@nomad.inbox5.com>
parents:
11330
diff
changeset
|
1039 loadimage spfind spsum |
|
7ca273af4309
Deprecate sphcat and spvcat functions.
Rik <octave@nomad.inbox5.com>
parents:
11330
diff
changeset
|
1040 mark_as_command sphcat spsumsq |
|
7ca273af4309
Deprecate sphcat and spvcat functions.
Rik <octave@nomad.inbox5.com>
parents:
11330
diff
changeset
|
1041 mark_as_rawcommand spinv spvcat |
|
7ca273af4309
Deprecate sphcat and spvcat functions.
Rik <octave@nomad.inbox5.com>
parents:
11330
diff
changeset
|
1042 spatan2 spkron str2mat |
|
7ca273af4309
Deprecate sphcat and spvcat functions.
Rik <octave@nomad.inbox5.com>
parents:
11330
diff
changeset
|
1043 spchol splchol unmark_command |
|
7ca273af4309
Deprecate sphcat and spvcat functions.
Rik <octave@nomad.inbox5.com>
parents:
11330
diff
changeset
|
1044 spchol2inv split unmark_rawcommand |
|
11112
8ea4cf59c41b
list deprecated and removed functions in NEWS file
John W. Eaton <jwe@octave.org>
parents:
11111
diff
changeset
|
1045 |
|
8ea4cf59c41b
list deprecated and removed functions in NEWS file
John W. Eaton <jwe@octave.org>
parents:
11111
diff
changeset
|
1046 The following functions have been deprecated in Octave 3.4 and will |
|
8ea4cf59c41b
list deprecated and removed functions in NEWS file
John W. Eaton <jwe@octave.org>
parents:
11111
diff
changeset
|
1047 be removed from Octave 3.8 (or whatever version is the second major |
|
8ea4cf59c41b
list deprecated and removed functions in NEWS file
John W. Eaton <jwe@octave.org>
parents:
11111
diff
changeset
|
1048 release after 3.4): |
|
8ea4cf59c41b
list deprecated and removed functions in NEWS file
John W. Eaton <jwe@octave.org>
parents:
11111
diff
changeset
|
1049 |
|
14354
55bb8c902a4d
maint: Remove deprecated functions from dev branch for next (3.8) release.
Rik <octave@nomad.inbox5.com>
parents:
14294
diff
changeset
|
1050 autocor cellidx gammai is_global replot values |
|
55bb8c902a4d
maint: Remove deprecated functions from dev branch for next (3.8) release.
Rik <octave@nomad.inbox5.com>
parents:
14294
diff
changeset
|
1051 autocov dispatch glpkmex krylovb saveimage |
|
55bb8c902a4d
maint: Remove deprecated functions from dev branch for next (3.8) release.
Rik <octave@nomad.inbox5.com>
parents:
14294
diff
changeset
|
1052 betai fstat intwarning perror strerror |
|
11112
8ea4cf59c41b
list deprecated and removed functions in NEWS file
John W. Eaton <jwe@octave.org>
parents:
11111
diff
changeset
|
1053 |
|
7990
86dae6e5b83c
Initial update of NEWS for 3.2 release
David Bateman <dbateman@free.fr>
parents:
7279
diff
changeset
|
1054 Summary of important user-visible changes for version 3.2: |
| 5913 | 1055 --------------------------------------------------------- |
| 2452 | 1056 |
| 8737 | 1057 ** Compatibility with Matlab graphics has been improved. |
| 6329 | 1058 |
|
8070
3b53b25e2550
Add data sources and line series
David Bateman <dbateman@free.fr>
parents:
8014
diff
changeset
|
1059 The hggroup object and associated listener callback functions have |
| 8737 | 1060 been added allowing the inclusion of group objects. Data sources |
|
8070
3b53b25e2550
Add data sources and line series
David Bateman <dbateman@free.fr>
parents:
8014
diff
changeset
|
1061 have been added to these group objects such that |
|
3b53b25e2550
Add data sources and line series
David Bateman <dbateman@free.fr>
parents:
8014
diff
changeset
|
1062 |
|
3b53b25e2550
Add data sources and line series
David Bateman <dbateman@free.fr>
parents:
8014
diff
changeset
|
1063 x = 0:0.1:10; |
|
3b53b25e2550
Add data sources and line series
David Bateman <dbateman@free.fr>
parents:
8014
diff
changeset
|
1064 y = sin (x); |
|
3b53b25e2550
Add data sources and line series
David Bateman <dbateman@free.fr>
parents:
8014
diff
changeset
|
1065 plot (x, y, "ydatasource", "y"); |
|
3b53b25e2550
Add data sources and line series
David Bateman <dbateman@free.fr>
parents:
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diff
changeset
|
1066 for i = 1 : 100 |
|
3b53b25e2550
Add data sources and line series
David Bateman <dbateman@free.fr>
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diff
changeset
|
1067 pause(0.1) |
|
3b53b25e2550
Add data sources and line series
David Bateman <dbateman@free.fr>
parents:
8014
diff
changeset
|
1068 y = sin (x + 0.1 * i); |
| 14188 | 1069 refreshdata (); |
|
8070
3b53b25e2550
Add data sources and line series
David Bateman <dbateman@free.fr>
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diff
changeset
|
1070 endfor |
|
3b53b25e2550
Add data sources and line series
David Bateman <dbateman@free.fr>
parents:
8014
diff
changeset
|
1071 |
| 8737 | 1072 works as expected. This capability has be used to introduce |
|
9031
1052a66078cf
Documentation cleanup of top-level Octave directory (READMEs, INSTALL)
Rik <rdrider0-list@yahoo.com>
parents:
8932
diff
changeset
|
1073 stem-series, bar-series, etc., objects for better Matlab |
| 8737 | 1074 compatibility. |
| 1075 | |
| 1076 ** New graphics functions: | |
| 1077 | |
|
11576
8ac9687dbe9f
rename backend to graphics_toolkit
John W. Eaton <jwe@octave.org>
parents:
11562
diff
changeset
|
1078 addlistener ezcontour gcbo refresh |
|
8ac9687dbe9f
rename backend to graphics_toolkit
John W. Eaton <jwe@octave.org>
parents:
11562
diff
changeset
|
1079 addproperty ezcontourf ginput refreshdata |
|
8ac9687dbe9f
rename backend to graphics_toolkit
John W. Eaton <jwe@octave.org>
parents:
11562
diff
changeset
|
1080 allchild ezmesh gtext specular |
|
8ac9687dbe9f
rename backend to graphics_toolkit
John W. Eaton <jwe@octave.org>
parents:
11562
diff
changeset
|
1081 available_graphics_toolkits ezmeshc intwarning surfl |
|
8ac9687dbe9f
rename backend to graphics_toolkit
John W. Eaton <jwe@octave.org>
parents:
11562
diff
changeset
|
1082 graphics_toolkit ezplot ishghandle trisurf |
|
8ac9687dbe9f
rename backend to graphics_toolkit
John W. Eaton <jwe@octave.org>
parents:
11562
diff
changeset
|
1083 cla ezplot3 isocolors waitforbuttonpress |
|
8ac9687dbe9f
rename backend to graphics_toolkit
John W. Eaton <jwe@octave.org>
parents:
11562
diff
changeset
|
1084 clabel ezpolar isonormals |
|
8ac9687dbe9f
rename backend to graphics_toolkit
John W. Eaton <jwe@octave.org>
parents:
11562
diff
changeset
|
1085 comet ezsurf isosurface |
|
8ac9687dbe9f
rename backend to graphics_toolkit
John W. Eaton <jwe@octave.org>
parents:
11562
diff
changeset
|
1086 dellistener findall linkprop |
|
8ac9687dbe9f
rename backend to graphics_toolkit
John W. Eaton <jwe@octave.org>
parents:
11562
diff
changeset
|
1087 diffuse gcbf plotmatrix |
|
8070
3b53b25e2550
Add data sources and line series
David Bateman <dbateman@free.fr>
parents:
8014
diff
changeset
|
1088 |
| 8737 | 1089 ** New experimental OpenGL/FLTK based plotting system. |
| 1090 | |
| 1091 An experimental plotting system based on OpenGL and the FLTK | |
|
11576
8ac9687dbe9f
rename backend to graphics_toolkit
John W. Eaton <jwe@octave.org>
parents:
11562
diff
changeset
|
1092 toolkit is now part of Octave. This graphics toolkit is disabled by |
| 8737 | 1093 default. You can switch to using it with the command |
|
8070
3b53b25e2550
Add data sources and line series
David Bateman <dbateman@free.fr>
parents:
8014
diff
changeset
|
1094 |
|
11576
8ac9687dbe9f
rename backend to graphics_toolkit
John W. Eaton <jwe@octave.org>
parents:
11562
diff
changeset
|
1095 graphics_toolkit ("fltk") |
|
8070
3b53b25e2550
Add data sources and line series
David Bateman <dbateman@free.fr>
parents:
8014
diff
changeset
|
1096 |
|
3b53b25e2550
Add data sources and line series
David Bateman <dbateman@free.fr>
parents:
8014
diff
changeset
|
1097 for all future figures or for a particular figure with the command |
|
3b53b25e2550
Add data sources and line series
David Bateman <dbateman@free.fr>
parents:
8014
diff
changeset
|
1098 |
|
11576
8ac9687dbe9f
rename backend to graphics_toolkit
John W. Eaton <jwe@octave.org>
parents:
11562
diff
changeset
|
1099 graphics_toolkit (h, "fltk") |
|
8070
3b53b25e2550
Add data sources and line series
David Bateman <dbateman@free.fr>
parents:
8014
diff
changeset
|
1100 |
| 11139 | 1101 where "h" is a valid figure handle. |
|
8070
3b53b25e2550
Add data sources and line series
David Bateman <dbateman@free.fr>
parents:
8014
diff
changeset
|
1102 |
| 8737 | 1103 ** Functions providing direct access to gnuplot have been removed. |
| 1104 | |
|
7990
86dae6e5b83c
Initial update of NEWS for 3.2 release
David Bateman <dbateman@free.fr>
parents:
7279
diff
changeset
|
1105 The functions __gnuplot_plot__, __gnuplot_set__, __gnuplot_raw__, |
|
86dae6e5b83c
Initial update of NEWS for 3.2 release
David Bateman <dbateman@free.fr>
parents:
7279
diff
changeset
|
1106 __gnuplot_show__, __gnuplot_replot__, __gnuplot_splot__, |
| 8737 | 1107 __gnuplot_save_data__ and __gnuplot_send_inline_data__ have been |
| 1108 removed from Octave. These function were incompatible with the | |
| 1109 high level graphics handle code. | |
| 6329 | 1110 |
| 8885 | 1111 ** The Control, Finance and Quaternion functions have been removed. |
| 1112 | |
| 1113 These functions are now available as separate packages from | |
| 1114 | |
| 1115 http://octave.sourceforge.net/packages.html | |
| 1116 | |
| 1117 and can be reinstalled using the Octave package manager (see | |
| 1118 the pkg function). | |
| 1119 | |
| 1120 ** Specific sparse matrix functions removed. | |
| 1121 | |
| 1122 The following functions, which handled only sparse matrices have | |
| 1123 been removed. Instead of calling these functions directly, you | |
| 1124 should use the corresponding function without the "sp" prefix. | |
| 8737 | 1125 |
| 8885 | 1126 spatan2 spcumsum spkron spprod |
| 1127 spchol spdet splchol spqr | |
| 1128 spchol2inv spdiag splu spsum | |
| 1129 spcholinv spfind spmax spsumsqk | |
| 1130 spcumprod spinv spmin | |
| 1131 | |
| 1132 ** Improvements to the debugger. | |
| 1133 | |
| 1134 The interactive debugging features have been improved. Stopping | |
| 1135 on statements with dbstop should work correctly now. Stepping | |
| 1136 into and over functions, and stepping one statement at a time | |
| 1137 (with dbstep) now works. Moving up and down the call stack with | |
| 1138 dbup and dbdown now works. The dbstack function is now available | |
| 1139 to print the current function call stack. The new dbquit function | |
| 1140 is available to exit the debugging mode. | |
| 1141 | |
| 1142 ** Improved traceback error messages. | |
| 1143 | |
| 1144 Traceback error messages are much more concise and easier to | |
| 1145 understand. They now display information about the function call | |
| 1146 stack instead of the stack of all statements that were active at | |
| 1147 the point of the error. | |
|
8014
44d206ae68c9
improve fsolve compatibility
John W. Eaton <jwe@octave.org>
parents:
7990
diff
changeset
|
1148 |
| 8737 | 1149 ** Object Oriented Programming. |
|
8405
d79dfbff2f9d
document new norm features in NEWS
Jaroslav Hajek <highegg@gmail.com>
parents:
8396
diff
changeset
|
1150 |
| 8737 | 1151 Octave now includes OOP features and the user can create their own |
| 1152 class objects and overloaded functions and operators. For | |
| 1153 example, all methods of a class called "myclass" will be found in | |
| 1154 a directory "@myclass" on the users path. The class specific | |
| 1155 versions of functions and operators take precedence over the | |
| 1156 generic versions of these functions. | |
| 1157 | |
| 1158 New functions related to OOP include | |
| 7189 | 1159 |
| 8737 | 1160 class inferiorto isobject loadobj methods superiorto |
| 1161 | |
| 1162 See the Octave manual for more details. | |
| 7038 | 1163 |
| 8747 | 1164 ** Parsing of Command-style Functions. |
| 1165 | |
| 1166 Octave now parses command-style functions without needing to first | |
| 1167 declare them with "mark_as_command". The rules for recognizing a | |
| 1168 command-style function calls are | |
| 1169 | |
| 1170 * A command must appear as the first word in a statement, | |
| 1171 followed by a space. | |
| 1172 | |
| 1173 * The first character after the space must not be '=' or '(' | |
| 1174 | |
| 1175 * The next token after the space must not look like a binary | |
| 1176 operator. | |
| 1177 | |
| 1178 These rules should be mostly compatible with the way Matlab parses | |
| 1179 command-style function calls and allow users to define commands in | |
| 1180 .m files without having to mark them as commands. | |
| 1181 | |
| 1182 Note that previous versions of Octave allowed expressions like | |
| 1183 | |
| 1184 x = load -text foo.dat | |
| 1185 | |
| 1186 but an expression like this will now generate a parse error. In | |
| 1187 order to assign the value returned by a function to a variable, | |
| 1188 you must use the normal function call syntax: | |
| 1189 | |
| 1190 x = load ("-text", "foo.dat"); | |
| 1191 | |
| 8737 | 1192 ** Block comments. |
| 1193 | |
| 8747 | 1194 Commented code can be between matching "#{" and "#}" or "%{" and |
| 1195 "%}" markers, even if the commented code spans several line. This | |
| 1196 allows blocks code to be commented, without needing to comment | |
| 1197 each line. For example, | |
| 5814 | 1198 |
| 8747 | 1199 function [s, t] = func (x, y) |
| 1200 s = 2 * x; | |
| 1201 #{ | |
| 1202 s *= y; | |
| 1203 t = y + x; | |
| 1204 #} | |
|
7990
86dae6e5b83c
Initial update of NEWS for 3.2 release
David Bateman <dbateman@free.fr>
parents:
7279
diff
changeset
|
1205 endfunction |
| 5814 | 1206 |
| 8747 | 1207 the lines "s *= y;" and "t = y + x" will not be executed. |
| 8737 | 1208 |
|
12400
5252f12537f8
don't warn about coercing nested functions to subfunctions if yyparse failed
John W. Eaton <jwe@octave.org>
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12224
diff
changeset
|
1209 ** If any subfunction in a file ends with "end" or "endfunction", then |
|
5252f12537f8
don't warn about coercing nested functions to subfunctions if yyparse failed
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parents:
12224
diff
changeset
|
1210 they all must end that way. Previously, Octave accepted |
|
5252f12537f8
don't warn about coercing nested functions to subfunctions if yyparse failed
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diff
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|
1211 |
|
5252f12537f8
don't warn about coercing nested functions to subfunctions if yyparse failed
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diff
changeset
|
1212 function main () |
|
5252f12537f8
don't warn about coercing nested functions to subfunctions if yyparse failed
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diff
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|
1213 ... |
|
5252f12537f8
don't warn about coercing nested functions to subfunctions if yyparse failed
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diff
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|
1214 # no endfunction here. |
|
5252f12537f8
don't warn about coercing nested functions to subfunctions if yyparse failed
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|
1215 function sub () |
|
5252f12537f8
don't warn about coercing nested functions to subfunctions if yyparse failed
John W. Eaton <jwe@octave.org>
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diff
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|
1216 ... |
|
5252f12537f8
don't warn about coercing nested functions to subfunctions if yyparse failed
John W. Eaton <jwe@octave.org>
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diff
changeset
|
1217 endfunction |
|
5252f12537f8
don't warn about coercing nested functions to subfunctions if yyparse failed
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diff
changeset
|
1218 |
|
5252f12537f8
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diff
changeset
|
1219 but this is no longer allowed. |
|
5252f12537f8
don't warn about coercing nested functions to subfunctions if yyparse failed
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diff
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|
1220 |
| 8737 | 1221 ** Special treatment in the parser of expressions like "a' * b". |
| 2452 | 1222 |
| 8737 | 1223 In these cases the transpose is no longer explicitly formed and |
| 1224 BLAS libraries are called with the transpose flagged, | |
| 1225 significantly improving performance for these kinds of | |
| 1226 operations. | |
|
8417
654bcfb937bf
Add the eigs and svds functions
David Bateman <dbateman@free.fr>
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8405
diff
changeset
|
1227 |
| 8737 | 1228 ** Single Precision data type. |
| 2452 | 1229 |
| 8737 | 1230 Octave now includes a single precision data type. Single |
| 1231 precision variables can be created with the "single" command, or | |
|
9034
52515efc50c0
Documentation cleanup on NEWS file
Rik <rdrider0-list@yahoo.com>
parents:
9031
diff
changeset
|
1232 from functions like ones, eye, etc. For example, |
| 5995 | 1233 |
| 8737 | 1234 single (1) |
| 1235 ones (2, 2, "single") | |
| 1236 zeros (2, 2, "single") | |
| 1237 eye (2, 2, "single") | |
| 1238 Inf (2, 2, "single") | |
| 1239 NaN (2, 2, "single") | |
| 1240 NA (2, 2, "single") | |
| 7279 | 1241 |
| 8737 | 1242 all create single precision variables. For compatibility with |
| 1243 Matlab, mixed double/single precision operators and functions | |
| 1244 return single precision types. | |
| 1245 | |
| 1246 As a consequence of this addition to Octave the internal | |
|
7990
86dae6e5b83c
Initial update of NEWS for 3.2 release
David Bateman <dbateman@free.fr>
parents:
7279
diff
changeset
|
1247 representation of the double precision NA value has changed, and |
|
86dae6e5b83c
Initial update of NEWS for 3.2 release
David Bateman <dbateman@free.fr>
parents:
7279
diff
changeset
|
1248 so users that make use of data generated by Octave with R or |
|
86dae6e5b83c
Initial update of NEWS for 3.2 release
David Bateman <dbateman@free.fr>
parents:
7279
diff
changeset
|
1249 visa-versa are warned that compatibility might not be assured. |
| 7279 | 1250 |
| 8737 | 1251 ** Improved array indexing. |
| 1252 | |
| 1253 The underlying code used for indexing of arrays has been | |
|
9034
52515efc50c0
Documentation cleanup on NEWS file
Rik <rdrider0-list@yahoo.com>
parents:
9031
diff
changeset
|
1254 completely rewritten and indexing is now significantly faster. |
| 8737 | 1255 |
| 8755 | 1256 ** Improved memory management. |
| 1257 | |
| 1258 Octave will now attempt to share data in some cases where previously | |
| 1259 a copy would be made, such as certain array slicing operations or | |
|
9031
1052a66078cf
Documentation cleanup of top-level Octave directory (READMEs, INSTALL)
Rik <rdrider0-list@yahoo.com>
parents:
8932
diff
changeset
|
1260 conversions between cells, structs and cs-lists. This usually reduces |
| 8755 | 1261 both time and memory consumption. |
| 9128 | 1262 Also, Octave will now attempt to detect and optimize usage of a vector |
| 1263 as a stack, when elements are being repeatedly inserted at/removed from | |
| 1264 the end of the vector. | |
| 8755 | 1265 |
| 8738 | 1266 ** Improved performance for reduction operations. |
| 1267 | |
| 8755 | 1268 The performance of the sum, prod, sumsq, cumsum, cumprod, any, all, |
| 1269 max and min functions has been significantly improved. | |
| 8738 | 1270 |
| 9006 | 1271 ** Sorting and searching. |
| 1272 | |
| 1273 The performance of sort has been improved, especially when sorting | |
| 10453 | 1274 indices are requested. An efficient built-in issorted |
| 1275 implementation was added. The sortrows function now uses a more | |
|
12702
013cd94d8d7f
doc: Spelling fixes for various documentation files
John Bradshaw <john@johnbradshaw.org>
parents:
12698
diff
changeset
|
1276 efficient algorithm, especially in the homogeneous case. The lookup |
| 10453 | 1277 function is now a built-in function performing a binary search, |
| 1278 optimized for long runs of close elements. Lookup also works with | |
| 1279 cell arrays of strings. | |
| 9006 | 1280 |
| 1281 ** Range arithmetics | |
| 1282 | |
| 10453 | 1283 For some operations on ranges, Octave will attempt to keep the |
| 1284 result as a range. These include negation, adding a scalar, | |
|
14093
050bc580cb60
doc: Various docstring improvements before 3.6.0 release.
Rik <octave@nomad.inbox5.com>
parents:
14082
diff
changeset
|
1285 subtracting a scalar, and multiplying by a scalar. Ranges with zero |
| 10453 | 1286 increment are allowed and can be constructed using the built-in |
| 1287 function `ones'. | |
| 9006 | 1288 |
| 1289 ** Various performance improvements. | |
| 1290 | |
| 10453 | 1291 Performance of a number of other built-in operations and functions |
| 1292 was improved, including: | |
| 9006 | 1293 |
| 1294 * logical operations | |
| 1295 * comparison operators | |
| 1296 * element-wise power | |
| 1297 * accumarray | |
| 1298 * cellfun | |
| 1299 * isnan | |
| 1300 * isinf | |
| 1301 * isfinite | |
| 1302 * nchoosek | |
| 1303 * repmat | |
| 1304 * strcmp | |
| 1305 | |
| 8737 | 1306 ** 64-bit integer arithmetic. |
| 1307 | |
| 1308 Arithmetic with 64-bit integers (int64 and uint64 types) is fully | |
| 1309 supported, with saturation semantics like the other integer types. | |
| 1310 Performance of most integer arithmetic operations has been | |
| 1311 improved by using integer arithmetic directly. Previously, Octave | |
| 1312 performed integer math with saturation semantics by converting the | |
| 1313 operands to double precision, performing the operation, and then | |
| 1314 converting the result back to an integer value, truncating if | |
| 1315 necessary. | |
| 1316 | |
| 8885 | 1317 ** Diagonal and permutation matrices. |
| 1318 | |
| 1319 The interpreter can now treat diagonal and permutation matrices as | |
| 1320 special objects that store only the non-zero elements, rather than | |
| 1321 general full matrices. Therefore, it is now possible to construct | |
| 1322 and use these matrices in linear algebra without suffering a | |
| 1323 performance penalty due to storing large numbers of zero elements. | |
| 1324 | |
| 1325 ** Improvements to fsolve. | |
| 1326 | |
| 1327 The fsolve function now accepts an option structure argument (see | |
| 1328 also the optimset function). The INFO values returned from fsolve | |
| 1329 have changed to be compatible with Matlab's fsolve function. | |
| 1330 Additionally, fsolve is now able to solve overdetermined systems, | |
| 1331 complex-differentiable complex systems, systems with a sparse | |
| 1332 jacobian and can work in single precision if given single precision | |
|
9031
1052a66078cf
Documentation cleanup of top-level Octave directory (READMEs, INSTALL)
Rik <rdrider0-list@yahoo.com>
parents:
8932
diff
changeset
|
1333 inputs. It can also be called recursively. |
| 8885 | 1334 |
| 8737 | 1335 ** Improvements to the norm function. |
| 1336 | |
| 1337 The norm function is now able to compute row or column norms of a | |
| 1338 matrix in a single call, as well as general matrix p-norms. | |
| 1339 | |
| 1340 ** New functions for computing some eigenvalues or singular values. | |
| 1341 | |
| 1342 The eigs and svds functions have been included in Octave. These | |
| 1343 functions require the ARPACK library (now distributed under a | |
| 1344 GPL-compatible license). | |
| 1345 | |
| 1346 ** New QR and Cholesky factorization updating functions. | |
|
8370
34960ba08a81
document more new features in the NEWS file
Jaroslav Hajek <highegg@gmail.com>
parents:
8292
diff
changeset
|
1347 |
| 8737 | 1348 choldelete cholshift qrdelete qrshift |
| 1349 cholinsert cholupdate qrinsert qrupdate | |
| 1350 | |
| 1351 ** New quadrature functions. | |
| 1352 | |
| 1353 dblquad quadgk quadv triplequad | |
| 1354 | |
| 8885 | 1355 ** New functions for reading and writing images. |
| 1356 | |
| 1357 The imwrite and imread functions have been included in Octave. | |
| 1358 These functions require the GraphicsMagick library. The new | |
| 1359 function imfinfo provides information about an image file (size, | |
| 1360 type, colors, etc.) | |
| 1361 | |
|
9215
1500d0197484
allow multiple input event hook functions to be installed simultaneously
John W. Eaton <jwe@octave.org>
parents:
9128
diff
changeset
|
1362 ** The input_event_hook function has been replaced by the pair of |
|
1500d0197484
allow multiple input event hook functions to be installed simultaneously
John W. Eaton <jwe@octave.org>
parents:
9128
diff
changeset
|
1363 functions add_input_event_hook and remove_input_event_hook so that |
|
1500d0197484
allow multiple input event hook functions to be installed simultaneously
John W. Eaton <jwe@octave.org>
parents:
9128
diff
changeset
|
1364 more than one hook function may be installed at a time. |
|
1500d0197484
allow multiple input event hook functions to be installed simultaneously
John W. Eaton <jwe@octave.org>
parents:
9128
diff
changeset
|
1365 |
| 8737 | 1366 ** Other miscellaneous new functions. |
|
8370
34960ba08a81
document more new features in the NEWS file
Jaroslav Hajek <highegg@gmail.com>
parents:
8292
diff
changeset
|
1367 |
|
8932
2d0f8692a82e
Add the 'histc' function
Soren Hauberg <hauberg@gmail.com>
parents:
8888
diff
changeset
|
1368 addtodate hypot reallog |
|
2d0f8692a82e
Add the 'histc' function
Soren Hauberg <hauberg@gmail.com>
parents:
8888
diff
changeset
|
1369 bicgstab idivide realpow |
| 9006 | 1370 cellslices info realsqrt |
| 1371 cgs interp1q rectint | |
| 1372 command_line_path isdebugmode regexptranslate | |
| 1373 contrast isfloat restoredefaultpath | |
| 1374 convn isstrprop roundb | |
| 1375 cummin log1p rundemos | |
| 1376 cummax lsqnonneg runlength | |
| 1377 datetick matlabroot saveobj | |
| 1378 display namelengthmax spaugment | |
| 1379 expm1 nargoutchk strchr | |
| 1380 filemarker pathdef strvcat | |
| 1381 fstat perl subspace | |
| 1382 full prctile symvar | |
| 1383 fzero quantile treelayout | |
| 1384 genvarname re_read_readline_init_file validatestring | |
| 1385 histc | |
|
8370
34960ba08a81
document more new features in the NEWS file
Jaroslav Hajek <highegg@gmail.com>
parents:
8292
diff
changeset
|
1386 |
| 8885 | 1387 ** Changes to strcat. |
| 1388 | |
| 1389 The strcat function is now compatible with Matlab's strcat | |
| 1390 function, which removes trailing whitespace when concatenating | |
| 1391 character strings. For example | |
| 1392 | |
| 1393 strcat ('foo ', 'bar') | |
| 1394 ==> 'foobar' | |
| 1395 | |
| 1396 The new function cstrcat provides the previous behavior of | |
| 1397 Octave's strcat. | |
| 1398 | |
| 1399 ** Improvements to the help functions. | |
| 1400 | |
|
9034
52515efc50c0
Documentation cleanup on NEWS file
Rik <rdrider0-list@yahoo.com>
parents:
9031
diff
changeset
|
1401 The help system has been mostly re-implemented in .m files to make |
| 8885 | 1402 it easier to modify. Performance of the lookfor function has been |
| 1403 greatly improved by caching the help text from all functions that | |
| 1404 are distributed with Octave. The pkg function has been modified | |
| 1405 to generate cache files for external packages when they are | |
| 1406 installed. | |
| 1407 | |
|
8888
0c7b0049c023
mark create_set as deprecated in 3.2, not 3.0
John W. Eaton <jwe@octave.org>
parents:
8885
diff
changeset
|
1408 ** Deprecated functions. |
|
0c7b0049c023
mark create_set as deprecated in 3.2, not 3.0
John W. Eaton <jwe@octave.org>
parents:
8885
diff
changeset
|
1409 |
|
0c7b0049c023
mark create_set as deprecated in 3.2, not 3.0
John W. Eaton <jwe@octave.org>
parents:
8885
diff
changeset
|
1410 The following functions were deprecated in Octave 3.0 and will be |
|
11112
8ea4cf59c41b
list deprecated and removed functions in NEWS file
John W. Eaton <jwe@octave.org>
parents:
11111
diff
changeset
|
1411 removed from Octave 3.4 (or whatever version is the second major |
|
8888
0c7b0049c023
mark create_set as deprecated in 3.2, not 3.0
John W. Eaton <jwe@octave.org>
parents:
8885
diff
changeset
|
1412 release after 3.0): |
|
0c7b0049c023
mark create_set as deprecated in 3.2, not 3.0
John W. Eaton <jwe@octave.org>
parents:
8885
diff
changeset
|
1413 |
|
11112
8ea4cf59c41b
list deprecated and removed functions in NEWS file
John W. Eaton <jwe@octave.org>
parents:
11111
diff
changeset
|
1414 beta_cdf geometric_pdf pascal_pdf |
|
8ea4cf59c41b
list deprecated and removed functions in NEWS file
John W. Eaton <jwe@octave.org>
parents:
11111
diff
changeset
|
1415 beta_inv geometric_rnd pascal_rnd |
|
8ea4cf59c41b
list deprecated and removed functions in NEWS file
John W. Eaton <jwe@octave.org>
parents:
11111
diff
changeset
|
1416 beta_pdf hypergeometric_cdf poisson_cdf |
|
8ea4cf59c41b
list deprecated and removed functions in NEWS file
John W. Eaton <jwe@octave.org>
parents:
11111
diff
changeset
|
1417 beta_rnd hypergeometric_inv poisson_inv |
|
8ea4cf59c41b
list deprecated and removed functions in NEWS file
John W. Eaton <jwe@octave.org>
parents:
11111
diff
changeset
|
1418 binomial_cdf hypergeometric_pdf poisson_pdf |
|
8ea4cf59c41b
list deprecated and removed functions in NEWS file
John W. Eaton <jwe@octave.org>
parents:
11111
diff
changeset
|
1419 binomial_inv hypergeometric_rnd poisson_rnd |
|
8ea4cf59c41b
list deprecated and removed functions in NEWS file
John W. Eaton <jwe@octave.org>
parents:
11111
diff
changeset
|
1420 binomial_pdf intersection polyinteg |
|
8ea4cf59c41b
list deprecated and removed functions in NEWS file
John W. Eaton <jwe@octave.org>
parents:
11111
diff
changeset
|
1421 binomial_rnd is_bool setstr |
|
8ea4cf59c41b
list deprecated and removed functions in NEWS file
John W. Eaton <jwe@octave.org>
parents:
11111
diff
changeset
|
1422 chisquare_cdf is_complex struct_contains |
|
8ea4cf59c41b
list deprecated and removed functions in NEWS file
John W. Eaton <jwe@octave.org>
parents:
11111
diff
changeset
|
1423 chisquare_inv is_list struct_elements |
|
8ea4cf59c41b
list deprecated and removed functions in NEWS file
John W. Eaton <jwe@octave.org>
parents:
11111
diff
changeset
|
1424 chisquare_pdf is_matrix t_cdf |
|
8ea4cf59c41b
list deprecated and removed functions in NEWS file
John W. Eaton <jwe@octave.org>
parents:
11111
diff
changeset
|
1425 chisquare_rnd is_scalar t_inv |
|
8ea4cf59c41b
list deprecated and removed functions in NEWS file
John W. Eaton <jwe@octave.org>
parents:
11111
diff
changeset
|
1426 clearplot is_square t_pdf |
|
8ea4cf59c41b
list deprecated and removed functions in NEWS file
John W. Eaton <jwe@octave.org>
parents:
11111
diff
changeset
|
1427 clg is_stream t_rnd |
|
8ea4cf59c41b
list deprecated and removed functions in NEWS file
John W. Eaton <jwe@octave.org>
parents:
11111
diff
changeset
|
1428 com2str is_struct uniform_cdf |
|
8ea4cf59c41b
list deprecated and removed functions in NEWS file
John W. Eaton <jwe@octave.org>
parents:
11111
diff
changeset
|
1429 exponential_cdf is_symmetric uniform_inv |
|
8ea4cf59c41b
list deprecated and removed functions in NEWS file
John W. Eaton <jwe@octave.org>
parents:
11111
diff
changeset
|
1430 exponential_inv is_vector uniform_pdf |
|
8ea4cf59c41b
list deprecated and removed functions in NEWS file
John W. Eaton <jwe@octave.org>
parents:
11111
diff
changeset
|
1431 exponential_pdf isstr uniform_rnd |
|
8ea4cf59c41b
list deprecated and removed functions in NEWS file
John W. Eaton <jwe@octave.org>
parents:
11111
diff
changeset
|
1432 exponential_rnd lognormal_cdf weibcdf |
|
8ea4cf59c41b
list deprecated and removed functions in NEWS file
John W. Eaton <jwe@octave.org>
parents:
11111
diff
changeset
|
1433 f_cdf lognormal_inv weibinv |
|
8ea4cf59c41b
list deprecated and removed functions in NEWS file
John W. Eaton <jwe@octave.org>
parents:
11111
diff
changeset
|
1434 f_inv lognormal_pdf weibpdf |
|
8ea4cf59c41b
list deprecated and removed functions in NEWS file
John W. Eaton <jwe@octave.org>
parents:
11111
diff
changeset
|
1435 f_pdf lognormal_rnd weibrnd |
|
8ea4cf59c41b
list deprecated and removed functions in NEWS file
John W. Eaton <jwe@octave.org>
parents:
11111
diff
changeset
|
1436 f_rnd meshdom weibull_cdf |
|
8ea4cf59c41b
list deprecated and removed functions in NEWS file
John W. Eaton <jwe@octave.org>
parents:
11111
diff
changeset
|
1437 gamma_cdf normal_cdf weibull_inv |
|
8ea4cf59c41b
list deprecated and removed functions in NEWS file
John W. Eaton <jwe@octave.org>
parents:
11111
diff
changeset
|
1438 gamma_inv normal_inv weibull_pdf |
|
8ea4cf59c41b
list deprecated and removed functions in NEWS file
John W. Eaton <jwe@octave.org>
parents:
11111
diff
changeset
|
1439 gamma_pdf normal_pdf weibull_rnd |
|
8ea4cf59c41b
list deprecated and removed functions in NEWS file
John W. Eaton <jwe@octave.org>
parents:
11111
diff
changeset
|
1440 gamma_rnd normal_rnd wiener_rnd |
|
8888
0c7b0049c023
mark create_set as deprecated in 3.2, not 3.0
John W. Eaton <jwe@octave.org>
parents:
8885
diff
changeset
|
1441 geometric_cdf pascal_cdf |
|
0c7b0049c023
mark create_set as deprecated in 3.2, not 3.0
John W. Eaton <jwe@octave.org>
parents:
8885
diff
changeset
|
1442 geometric_inv pascal_inv |
|
0c7b0049c023
mark create_set as deprecated in 3.2, not 3.0
John W. Eaton <jwe@octave.org>
parents:
8885
diff
changeset
|
1443 |
|
0c7b0049c023
mark create_set as deprecated in 3.2, not 3.0
John W. Eaton <jwe@octave.org>
parents:
8885
diff
changeset
|
1444 The following functions are now deprecated in Octave 3.2 and will |
|
11112
8ea4cf59c41b
list deprecated and removed functions in NEWS file
John W. Eaton <jwe@octave.org>
parents:
11111
diff
changeset
|
1445 be removed from Octave 3.6 (or whatever version is the second major |
|
8888
0c7b0049c023
mark create_set as deprecated in 3.2, not 3.0
John W. Eaton <jwe@octave.org>
parents:
8885
diff
changeset
|
1446 release after 3.2): |
|
0c7b0049c023
mark create_set as deprecated in 3.2, not 3.0
John W. Eaton <jwe@octave.org>
parents:
8885
diff
changeset
|
1447 |
|
0c7b0049c023
mark create_set as deprecated in 3.2, not 3.0
John W. Eaton <jwe@octave.org>
parents:
8885
diff
changeset
|
1448 create_set spcholinv spmax |
|
0c7b0049c023
mark create_set as deprecated in 3.2, not 3.0
John W. Eaton <jwe@octave.org>
parents:
8885
diff
changeset
|
1449 dmult spcumprod spmin |
|
0c7b0049c023
mark create_set as deprecated in 3.2, not 3.0
John W. Eaton <jwe@octave.org>
parents:
8885
diff
changeset
|
1450 iscommand spcumsum spprod |
|
0c7b0049c023
mark create_set as deprecated in 3.2, not 3.0
John W. Eaton <jwe@octave.org>
parents:
8885
diff
changeset
|
1451 israwcommand spdet spqr |
|
0c7b0049c023
mark create_set as deprecated in 3.2, not 3.0
John W. Eaton <jwe@octave.org>
parents:
8885
diff
changeset
|
1452 lchol spdiag spsum |
|
0c7b0049c023
mark create_set as deprecated in 3.2, not 3.0
John W. Eaton <jwe@octave.org>
parents:
8885
diff
changeset
|
1453 loadimage spfind spsumsq |
|
0c7b0049c023
mark create_set as deprecated in 3.2, not 3.0
John W. Eaton <jwe@octave.org>
parents:
8885
diff
changeset
|
1454 mark_as_command spinv str2mat |
|
0c7b0049c023
mark create_set as deprecated in 3.2, not 3.0
John W. Eaton <jwe@octave.org>
parents:
8885
diff
changeset
|
1455 mark_as_rawcommand spkron unmark_command |
|
0c7b0049c023
mark create_set as deprecated in 3.2, not 3.0
John W. Eaton <jwe@octave.org>
parents:
8885
diff
changeset
|
1456 spatan2 splchol unmark_rawcommand |
|
0c7b0049c023
mark create_set as deprecated in 3.2, not 3.0
John W. Eaton <jwe@octave.org>
parents:
8885
diff
changeset
|
1457 spchol split |
|
0c7b0049c023
mark create_set as deprecated in 3.2, not 3.0
John W. Eaton <jwe@octave.org>
parents:
8885
diff
changeset
|
1458 spchol2inv splu |
|
0c7b0049c023
mark create_set as deprecated in 3.2, not 3.0
John W. Eaton <jwe@octave.org>
parents:
8885
diff
changeset
|
1459 |
|
7990
86dae6e5b83c
Initial update of NEWS for 3.2 release
David Bateman <dbateman@free.fr>
parents:
7279
diff
changeset
|
1460 See NEWS.3 for old news. |