X-Git-Url: https://git.creatis.insa-lyon.fr/pubgit/?p=CreaPhase.git;a=blobdiff_plain;f=octave_packages%2Fnan-2.5.5%2Fcenter.m;fp=octave_packages%2Fnan-2.5.5%2Fcenter.m;h=8062f1ae24060f05d2b28b751c26f07fd7c7e2f1;hp=0000000000000000000000000000000000000000;hb=f5f7a74bd8a4900f0b797da6783be80e11a68d86;hpb=1705066eceaaea976f010f669ce8e972f3734b05
diff --git a/octave_packages/nan-2.5.5/center.m b/octave_packages/nan-2.5.5/center.m
new file mode 100644
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+++ b/octave_packages/nan-2.5.5/center.m
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+function [i,S] = center(i,DIM,W)
+% CENTER removes the mean
+%
+% [z,mu] = center(x,DIM,W)
+% removes mean x along dimension DIM
+%
+% x input data
+% DIM dimension
+% 1: column
+% 2: row
+% default or []: first DIMENSION, with more than 1 element
+% W weights to computed weighted mean (default: [], all weights = 1)
+% numel(W) must be equal to size(x,DIM)
+%
+% features:
+% - can deal with NaN's (missing values)
+% - weighting of data
+% - dimension argument
+% - compatible to Matlab and Octave
+%
+% see also: SUMSKIPNAN, MEAN, STD, DETREND, ZSCORE
+%
+% REFERENCE(S):
+
+% 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 2 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 .
+
+
+% $Id: center.m 8223 2011-04-20 09:16:06Z schloegl $
+% Copyright (C) 2000-2003,2005,2009 by Alois Schloegl
+% This is part of the NaN-toolbox. For more details see
+% http://pub.ist.ac.at/~schloegl/matlab/NaN/
+
+
+if any(size(i)==0); return; end;
+
+if nargin<3,
+ W = [];
+end;
+if nargin>1,
+ [S,N] = sumskipnan(i,DIM,W);
+else
+ [S,N] = sumskipnan(i,[],W);
+end;
+
+S = S./N;
+szi = size(i);
+szs = size(S);
+if length(szs)