0001 function [F,opt] = preproc(X, opt) 0002 0003 X=preproc_scalecenter(X,opt); 0004 0005 F=meandiffs(X'); 0006 F=shiftdim(F,-1); 0007 F=cell2mat(F); 0008 F=permute(F,[3,1,2]); 0009