MATLAB: Replace matrix elements by the difference with the highest alternative in the same row

MATLABmaxreplace

How to obtain the third matrix given the original matrix?
●The original matrix:
 1  6   13
 3  9   2
 7  11  20
●The difference with the highest alternative in the same row will be:
 1-13   6-13   13-6
 3-9    9-3    2-9
 7-20   11-20  20-11
●which is：
 -12   -7    7
 -6     6   -7
 -13   -9    9

Best Answer

clc; clear all;
 A = [1  6   13
 3  9   2
 7  11  20] ;
iwant = zeros(size(A)) ;
for i = 1:size(A,1)
    for j = 1:size(A,2)
        iwant(i,j) = A(i,j)-max(setdiff(A(i,:),A(i,j))) ;
    end
end
iwant
Related Question