quadraticmap.m

It is for Face Recognition

function [y]=quadraticMap(x)
%function [y]=quadraticMap(x)
  [d, n]=size(x);
  y = zeros(fix(d*(d+1)/2),n);

  t = 1;
  for j=1:d
    for k=j:d
      p=(x(j,:).*x(k,:));
      y(t,:) = p;
      t=t+1;
    end
  end