X-Git-Url: https://git.creatis.insa-lyon.fr/pubgit/?p=CreaPhase.git;a=blobdiff_plain;f=octave_packages%2Fm%2Fsparse%2Fnonzeros.m;fp=octave_packages%2Fm%2Fsparse%2Fnonzeros.m;h=aeb6fdc12611923cbba4ef2e102bc34763e93309;hp=0000000000000000000000000000000000000000;hb=1c0469ada9531828709108a4882a751d2816994a;hpb=63de9f36673d49121015e3695f2c336ea92bc278 diff --git a/octave_packages/m/sparse/nonzeros.m b/octave_packages/m/sparse/nonzeros.m new file mode 100644 index 0000000..aeb6fdc --- /dev/null +++ b/octave_packages/m/sparse/nonzeros.m @@ -0,0 +1,40 @@ +## Copyright (C) 2004-2012 Paul Kienzle +## +## 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} {} nonzeros (@var{s}) +## Return a vector of the non-zero values of the sparse matrix @var{s}. +## @end deftypefn + +function t = nonzeros (s) + + if (nargin != 1) + print_usage (); + endif + + [~, ~, t] = find (s); + + t = t(:); + +endfunction + + +%!assert(nonzeros([1,2;3,0]),[1;3;2]) +%!assert(nonzeros([1,2,3,0]),[1;2;3]) +%!assert(nonzeros(sparse([1,2;3,0])),[1;3;2]) +%!assert(nonzeros(sparse([1,2,3,0])),[1;2;3])