Logo Search packages:      
Sourcecode: octave-miscellaneous version File versions  Download package

nze.m

## 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 General Public License along with
## this program.  If not, see <http://www.gnu.org/licenses/>.

## -*- texinfo -*-
## @deftypefn{Function File} {[@var{y}, @var{f}] = } nze (@var{x}) 
## Extract nonzero elements of @var{x}. Equivalent to @code{@var{x}(@var{x} != 0)}.
## Optionally, returns also linear indices.
## @end deftypefn

## Author:        Etienne Grossmann <etienne@cs.uky.edu>
## Author:        Jaroslav Hajek <highegg@gmail.com>

function [y, f] = nze (x)
  nz = x != 0;
  y = x(nz);
  if (nargout > 1)
    f = find (nz);
  endif
endfunction

Generated by  Doxygen 1.6.0   Back to index