second_max.m

用Cross validation的方法建立人工神经网络的模型！

%	For given array X, exports maximal elements by rows, their indeces, 
%	and ALSO second maximal elements along their indeces
%	Will be judged for margin in NN classifier.
%  [maxX,indeces,second_maxX,second_indeces]=second_max(X)
function [maxX,indeces,second_maxX,second_indeces]=second_max(X)
  [maxX,indeces]=max(X);
  for i=1:size(X,2)
         X(indeces(i),i)=-Inf;
  end   
  [second_maxX,second_indeces]=max(X);
  
return;