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annotate scripts/sparse/nonzeros.m @ 20795:eef93a493ce3

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use new cell_value method to handle value extraction errors * cellfun.cc, ov-class.cc, ov-struct.cc, ov-usr-fcn.cc: Use new cell_value method.
author John W. Eaton <jwe@octave.org>
date Fri, 09 Oct 2015 14:43:36 -0400
parents 4197fc428c7d
children
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4197fc428c7d maint: Update copyright notices for 2015.
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1 ## Copyright (C) 2004-2015 Paul Kienzle
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2 ##
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3 ## This file is part of Octave.
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4 ##
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5 ## Octave is free software; you can redistribute it and/or modify it
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6 ## under the terms of the GNU General Public License as published by
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7 ## the Free Software Foundation; either version 3 of the License, or (at
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8 ## your option) any later version.
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9 ##
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10 ## Octave is distributed in the hope that it will be useful, but
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11 ## WITHOUT ANY WARRANTY; without even the implied warranty of
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12 ## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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13 ## General Public License for more details.
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14 ##
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15 ## You should have received a copy of the GNU General Public License
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16 ## along with Octave; see the file COPYING. If not, see
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17 ## <http://www.gnu.org/licenses/>.
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19 ## -*- texinfo -*-
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20 ## @deftypefn {Function File} {} nonzeros (@var{s})
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21 ## Return a vector of the nonzero values of the sparse matrix @var{s}.
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22 ## @seealso{find, nnz}
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23 ## @end deftypefn
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24
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25 function t = nonzeros (s)
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27 if (nargin != 1)
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28 print_usage ();
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29 endif
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31 [~, ~, t] = find (s);
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33 t = t(:);
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34
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35 endfunction
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38 %!assert (nonzeros ([1,2;3,0]), [1;3;2])
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39 %!assert (nonzeros ([1,2,3,0]), [1;2;3])
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40 %!assert (nonzeros (sparse ([1,2;3,0])), [1;3;2])
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41 %!assert (nonzeros (sparse ([1,2,3,0])), [1;2;3])
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