X-Git-Url: https://git.creatis.insa-lyon.fr/pubgit/?p=CreaPhase.git;a=blobdiff_plain;f=octave_packages%2Fm%2Fgeneral%2Ffliplr.m;fp=octave_packages%2Fm%2Fgeneral%2Ffliplr.m;h=580c64d0742960f1f4f6efec344fd79288c21d2a;hp=0000000000000000000000000000000000000000;hb=1c0469ada9531828709108a4882a751d2816994a;hpb=63de9f36673d49121015e3695f2c336ea92bc278 diff --git a/octave_packages/m/general/fliplr.m b/octave_packages/m/general/fliplr.m new file mode 100644 index 0000000..580c64d --- /dev/null +++ b/octave_packages/m/general/fliplr.m @@ -0,0 +1,62 @@ +## Copyright (C) 1993-2012 John W. Eaton +## +## This file is part of Octave. +## +## Octave is free software; you can redistribute it and/or modify it +## under the terms of the GNU General Public License as published by +## the Free Software Foundation; either version 3 of the License, or (at +## your option) any later version. +## +## Octave is distributed in the hope that it will be useful, but +## WITHOUT ANY WARRANTY; without even the implied warranty of +## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU +## General Public License for more details. +## +## You should have received a copy of the GNU General Public License +## along with Octave; see the file COPYING. If not, see +## . + +## -*- texinfo -*- +## @deftypefn {Function File} {} fliplr (@var{x}) +## Return a copy of @var{x} with the order of the columns reversed. In +## other words, @var{x} is flipped left-to-right about a vertical axis. For +## example: +## +## @example +## @group +## fliplr ([1, 2; 3, 4]) +## @result{} 2 1 +## 4 3 +## @end group +## @end example +## +## Note that @code{fliplr} only works with 2-D arrays. To flip N-D arrays +## use @code{flipdim} instead. +## @seealso{flipud, flipdim, rot90, rotdim} +## @end deftypefn + +## Author: jwe + +function y = fliplr (x) + + if (nargin != 1) + print_usage (); + endif + + if (ndims (x) > 2) + error ("fliplr: Only works with 2-D arrays"); + endif + + nc = columns (x); + y = x (:, nc:-1:1); + +endfunction + +%!assert((fliplr ([1, 2; 3, 4]) == [2, 1; 4, 3] +%! && fliplr ([1, 2; 3, 4; 5, 6]) == [2, 1; 4, 3; 6, 5] +%! && fliplr ([1, 2, 3; 4, 5, 6]) == [3, 2, 1; 6, 5, 4])); + +%!error fliplr(); + +%!error fliplr (1, 2); +