normalizemeanstd.m

surpport vector machine,matlab

function [xapp,xtest] = normalizemeanstd(xapp,xtest)

% USAGE
% 
% [xapp,xtest] = normalizemeanstd(xapp,xtest)
%
% normalize inputs and output mean and standard deviation to 0 and 1
%
% 

meanxapp=mean(xapp);
stdxapp=std(xapp);
nbxapp=size(xapp,1);

nbvar=size(xapp,2);

xapp= (xapp - ones(nbxapp,1)*meanxapp)./ (ones(nbxapp,1)*stdxapp) ;

if nargin >1
    nbxtest=size(xtest,1);
    xtest= (xtest - ones(nbxtest,1)*meanxapp)./ (ones(nbxtest,1)*stdxapp );

end;