annotate scripts/deprecated/flipdim.m @ 19126:995df67fc912

Flip arrays - ND support for fliplr and flipud, and replace flipdim with flip. * fliplr.m, flipud.m: add support for N-dimensional arrays by making use of flip(). Added new tests for ND arrays and defaults. * flipdim.m: deprecate in favour of new function flip() which has exactly the same syntax and is part of Matlab since R2014a. * flip.m: new function copied from flipdim. Added tests for ND arrays and defaults. * matrix.txi: replace flipdim DOCSTRINg with flip. * rot90.m, rotdim.m, del2.m: replace flipdim() with flip() * NEWS: note deprecation of flip(), new function flipdim(), and ND support for flipud() and fliplr().
author Carnë Draug <carandraug+dev@gmail.com>
date Sun, 21 Sep 2014 18:49:08 +0100
parents scripts/general/flipdim.m@7bbe3658c5ef
children
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d63878346099 maint: Update copyright notices for release.
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1 ## Copyright (C) 2004-2013 David Bateman
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2 ## Copyright (C) 2009 VZLU Prague
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3 ##
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4 ## This file is part of Octave.
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5 ##
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6 ## Octave is free software; you can redistribute it and/or modify it
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7 ## under the terms of the GNU General Public License as published by
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8 ## the Free Software Foundation; either version 3 of the License, or (at
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9 ## your option) any later version.
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10 ##
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11 ## Octave is distributed in the hope that it will be useful, but
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12 ## WITHOUT ANY WARRANTY; without even the implied warranty of
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13 ## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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14 ## General Public License for more details.
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15 ##
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16 ## You should have received a copy of the GNU General Public License
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17 ## along with Octave; see the file COPYING. If not, see
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18 ## <http://www.gnu.org/licenses/>.
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19
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20 ## -*- texinfo -*-
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21 ## @deftypefn {Function File} {} flipdim (@var{x})
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22 ## @deftypefnx {Function File} {} flipdim (@var{x}, @var{dim})
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23 ## Return a copy of @var{x} flipped about the dimension @var{dim}.
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24 ## @var{dim} defaults to the first non-singleton dimension.
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25 ##
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26 ## @strong{Warning:} @code{flipdim} is scheduled for removal in version 4.6.
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27 ## Use @code{flip} which can be used as a drop-in replacement.
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28 ##
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29 ## @seealso{fliplr, flipud, rot90, rotdim}
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30 ## @end deftypefn
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31
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32 ## Author: David Bateman, Jaroslav Hajek
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33
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34 function y = flipdim (x, dim)
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35
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36 persistent warned = false;
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37 if (! warned)
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38 warned = true;
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39 warning ("Octave:deprecated-function",
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40 "flipdim is deprecated and will be removed from a future version of Octave; please use flip (x, dim) instead");
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41 endif
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42
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43 if (nargin != 1 && nargin != 2)
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44 print_usage ();
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45 endif
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46
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47 nd = ndims (x);
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48 sz = size (x);
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49 if (nargin == 1)
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50 ## Find the first non-singleton dimension.
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51 (dim = find (sz > 1, 1)) || (dim = 1);
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52 elseif (! (isscalar (dim) && isindex (dim)))
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53 error ("flipdim: DIM must be a positive integer");
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54 endif
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55
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56 idx(1:max(nd, dim)) = {':'};
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57 idx{dim} = size (x, dim):-1:1;
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58 y = x(idx{:});
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59
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60 endfunction
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61