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preproc_scalecenter

PURPOSE ^

SYNOPSIS ^

function [X,opt]=preproc_scalecenter(X,opt)

DESCRIPTION ^

CROSS-REFERENCE INFORMATION ^

This function calls: This function is called by:

SOURCE CODE ^

0001 function [X,opt]=preproc_scalecenter(X,opt)
0002 
0003 if iscell(X)
0004   if size(X,1)<size(X,2)
0005     X=X';
0006   end
0007 
0008   L=zeros(size(X));
0009   for ii=1:length(X)
0010     L(ii)=size(X{ii},1);
0011   end
0012 
0013   X=cell2mat(X);
0014 else
0015   L=size(X,1);
0016 end
0017 
0018 if ~exist('opt','var') || ~isfield(opt,'mm') || ~isfield(opt,'ss')
0019   opt.mm=mean(X);
0020   opt.ss=std(X);
0021 end
0022 
0023 X=(X-ones(sum(L),1)*opt.mm)/diag(opt.ss);
0024 
0025 X=mat2cell(X,L,size(X,2));

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