samer@21: % zeromax - additive normalisation so max value us zero
samer@4: %
samer@21: % zeromax :: 
samer@21: %    [D:[[E]]] ~'E dimensional array of size D', 
samer@21: %    1..D      ~'dimension to normalise along' 
samer@21: % -> [D] ~'shifted data'.
samer@21: %
samer@21: % non-finite values are ignored. Dimension defaults to 1.
samer@21: function [y,m]=zeromax(x,dim), x=addnorm(@(y)max(y,[],dim),x); end