X-Git-Url: https://git.creatis.insa-lyon.fr/pubgit/?a=blobdiff_plain;ds=sidebyside;f=octave_packages%2Fstatistics-1.1.3%2Fnansum.m;fp=octave_packages%2Fstatistics-1.1.3%2Fnansum.m;h=bb9075d249a79b9f59d696257aa9d81f64feb3d9;hb=f5f7a74bd8a4900f0b797da6783be80e11a68d86;hp=0000000000000000000000000000000000000000;hpb=1705066eceaaea976f010f669ce8e972f3734b05;p=CreaPhase.git

diff --git a/octave_packages/statistics-1.1.3/nansum.m b/octave_packages/statistics-1.1.3/nansum.m
new file mode 100644
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+++ b/octave_packages/statistics-1.1.3/nansum.m
@@ -0,0 +1,35 @@
+## Copyright (C) 2001 Paul Kienzle <pkienzle@users.sf.net>
+##
+## 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
+## this program; if not, see <http://www.gnu.org/licenses/>.
+
+## -*- texinfo -*-
+## @deftypefn {Function File} {@var{v} =} nansum (@var{X})
+## @deftypefnx{Function File} {@var{v} =} nansum (@var{X}, @var{dim})
+## Compute the sum while ignoring NaN values.
+##
+## @code{nansum} is identical to the @code{sum} function except that NaN values are
+## treated as 0 and so ignored.  If all values are NaN, the sum is 
+## returned as 0.
+##
+## @seealso{sum, nanmin, nanmax, nanmean, nanmedian}
+## @end deftypefn
+
+function v = nansum (X, varargin)
+  if nargin < 1
+    print_usage;
+  else
+    X(isnan(X)) = 0;
+    v = sum (X, varargin{:});
+  endif
+endfunction