X-Git-Url: https://git.creatis.insa-lyon.fr/pubgit/?p=CreaPhase.git;a=blobdiff_plain;f=octave_packages%2Flinear-algebra-2.2.0%2F%40blksparse%2Ftranspose.m;fp=octave_packages%2Flinear-algebra-2.2.0%2F%40blksparse%2Ftranspose.m;h=fb0cababc5f7900b274b3236f33a380d839ae27a;hp=0000000000000000000000000000000000000000;hb=f5f7a74bd8a4900f0b797da6783be80e11a68d86;hpb=1705066eceaaea976f010f669ce8e972f3734b05 diff --git a/octave_packages/linear-algebra-2.2.0/@blksparse/transpose.m b/octave_packages/linear-algebra-2.2.0/@blksparse/transpose.m new file mode 100644 index 0000000..fb0caba --- /dev/null +++ b/octave_packages/linear-algebra-2.2.0/@blksparse/transpose.m @@ -0,0 +1,29 @@ +## Copyright (C) 2010 VZLU Prague +## +## This program 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. +## +## This program 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} transpose (@var{x}) +## Returns the transpose of a block sparse matrix @var{x}. +## @end deftypefn + +function y = transpose (x) + y.siz = x.siz(2:-1:1); + y.bsiz = x.bsiz(2:-1:1); + [y.j,idx] = sort (x.i); + y.i = x.j(idx); + y.sv = permute (x.sv(:,:,idx), [2,1,3]); +endfunction +