function[m, a] = maxxy2(x, y);

%
% function[m] = maxxy2(x, y);
% -------------------------------------------------------------------
% 
% input: 	x,y - column vectors
% output:   m - a column vector of max values between corresponding xs and ys
%											when x(i) ~= y(i) and 0 otherwise				                       
% More efficient version
% -------------------------------------------------------------------
% Maxim Likhachev


inputlength = size(x,1);

%check that the input is valid
if(size(x,1) ~= size(y,1) | size(x,2) ~= 1 | size(y,2) > 1)
   fprintf(1, 'ERROR: size of x should match the size of y or is invalid\n');
   return;
end;

%create output
m = zeros(size(x));

a = [x';y'];
m = max(a);
f = find(x == y);
m(f) = 0;

m = m';