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1 ## Copyright (C) 2005 Nicolo' Giorgetti |
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2 ## |
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3 ## This file is part of Octave. |
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4 ## |
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5 ## Octave is free software; you can redistribute it and/or modify it |
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6 ## under the terms of the GNU General Public License as published by |
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7 ## the Free Software Foundation; either version 2, or (at your option) |
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8 ## any later version. |
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9 ## |
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10 ## Octave is distributed in the hope that it will be useful, but |
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11 ## WITHOUT ANY WARRANTY; without even the implied warranty of |
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12 ## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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13 ## General Public License for more details. |
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14 ## |
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15 ## You should have received a copy of the GNU General Public License |
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16 ## along with Octave; see the file COPYING. If not, write to the Free |
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17 ## Software Foundation, 59 Temple Place - Suite 330, Boston, MA |
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18 ## 02111-1307, USA. |
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19 |
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20 ## GLPKMEX - An Octave Interface for the GNU GLPK library |
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21 ## |
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22 ## This function is provided for compatibility with the old Matlab |
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23 ## interface to GLPK. |
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24 |
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25 function [xopt, fopt, status, extra] = glpkmex (varargin) |
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26 |
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27 ## If there is no input output the version and syntax |
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28 if (nargin < 4 || nargin > 11) |
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29 usage ("[xopt, fopt, status, extra] = glpkmex (sense, c, a, b, ctype, lb, ub, vartype, param, lpsolver, savepb"); |
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30 return; |
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31 endif |
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32 |
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33 ## reorder args: |
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34 ## |
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35 ## glpkmex glpk |
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36 ## |
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37 ## 1 sense c |
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38 ## 2 c a |
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39 ## 3 a b |
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40 ## 4 b lb |
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41 ## 5 ctype ub |
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42 ## 6 lb ctype |
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43 ## 7 ub vartype |
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44 ## 8 vartype sense |
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45 ## 9 param param |
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46 ## 10 lpsolver |
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47 ## 11 savepb |
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48 |
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49 sense = varargin{1}; |
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50 c = varargin{2}; |
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51 a = varargin{3}; |
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52 b = varargin{4}; |
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53 |
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54 nx = length (c); |
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55 |
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56 if (nargin > 4) |
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57 ctype = varargin{5}; |
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58 else |
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59 ctype = repmat ("U", nx, 1); |
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60 endif |
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61 |
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62 if (nargin > 5) |
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63 lb = varargin{6}; |
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64 else |
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65 lb = repmat (-Inf, nx, 1); |
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66 endif |
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67 |
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68 if (nargin > 6) |
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69 ub = varargin{7}; |
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70 else |
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71 ub = repmat (Inf, nx, 1); |
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72 endif |
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73 |
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74 if (nargin > 7) |
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75 vartype = varargin{8}; |
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76 else |
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77 vartype = repmat ("C", nx, 1); |
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78 endif |
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79 |
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80 if (nargin > 8) |
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81 param = varargin{9}; |
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82 else |
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83 param = struct (); |
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84 endif |
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85 |
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86 if (nargin > 9 && ! isfield (param, "lpsolver")) |
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87 param.lpsolver = varargin{10}; |
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88 endif |
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89 |
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90 if (nargin > 10 && ! isfield (param, "save")) |
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91 param.save = varargin{11}; |
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92 endif |
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93 |
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94 if (nargout == 0) |
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95 glpk (c, a, b, lb, ub, ctype, vartype, sense, param); |
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96 elseif (nargout == 1) |
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97 xopt = glpk (c, a, b, lb, ub, ctype, vartype, sense, param); |
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98 elseif (nargout == 2) |
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99 [xopt, fopt] = glpk (c, a, b, lb, ub, ctype, vartype, sense, param); |
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100 elseif (nargout == 3) |
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101 [xopt, fopt, status] = ... |
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102 glpk (c, a, b, lb, ub, ctype, vartype, sense, param); |
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103 else |
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104 [xopt, fopt, status, extra] = ... |
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105 glpk (c, a, b, lb, ub, ctype, vartype, sense, param); |
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106 endif |
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107 |
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108 endfunction |
