annotate scripts/control/sysreorder.m @ 3402:9610d364e444

[project @ 2000-01-05 04:36:38 by jwe]
author jwe
date Wed, 05 Jan 2000 04:36:51 +0000 (2000-01-05)
parents 0f515bc98460
children 8625164a0a39
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1 ## Copyright (C) 1996 Auburn University. All rights reserved.
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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 the
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7 ## Free Software Foundation; either version 2, or (at your option) any
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8 ## later version.
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9 ##
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10 ## Octave is distributed in the hope that it will be useful, but WITHOUT
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11 ## ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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12 ## FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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13 ## 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 02111 USA.
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18
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19 ## -*- texinfo -*-
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20 ## @deftypefn {Function File } { @var{pv} =} sysreorder( @var{vlen}, @{var{list})
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21 ##
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22 ## @strong{Inputs}
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23 ## @var{vlen}=vector length, @var{list}= a subset of @code{[1:vlen]},
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24 ##
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25 ## @strong{Outputs}
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26 ## @var{pv}: a permutation vector to order elements of @code{[1:vlen]} in
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27 ## @code{list} to the end of a vector.
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28 ##
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29 ## Used internally by @code{sysconnect} to permute vector elements to their
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30 ## desired locations.
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31 ## @end deftypefn
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32
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33 ## Author: A. S. Hodel <a.s.hodel@eng.auburn.edu>
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34 ## Created: August 1995
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35
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36 function pv = sysreorder (vlen, list)
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37
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38 ## disp('sysreorder: entry')
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39
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40 pv = 1:vlen;
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41 ## make it a row vector
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42 list = reshape(list,1,length(list));
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43 A = pv'*ones(size(list));
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44 B = ones(size(pv'))*list;
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45 X = (A != B);
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46 if(!is_vector(X))
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47 y = min(X');
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48 else
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49 y = X';
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50 endif
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51 z = find(y == 1);
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52 if(!isempty(z))
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53 pv = [z, list];
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54 else
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55 pv = list;
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56 endif
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57
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58 endfunction