MATLAB: How to Overwrite Data

MATLABoverwrite

The main objective is to overwrite the maximum values in matrix B with the values collected in matrix A

So I have:

A = (1:100,1) % A is the matrix with the results I need. So, A(1,1) = 4 , A(6,1) = 9

B = (1:100,1:2) % B always contains on each row a 0 and a value. Such as B(1,1:2) = 0 2 , B(6,1:2) = 53 0.

% Result would be for:

% C = (1:100,1:2) you would get C(1,1:2) = 0 4 , C(6,1:2) = 9 0

One simple MATLAB way:

C = max(A,B).*(B~=0)

Or for MATLAB versions prior to R2016b:

C = bsxfun(@max,A,B).*(B~=0)

% Create demo matrices, must be equal size
A = randi(4,5,4);
B = randi(6,5,4); 
C = B; 
C(A<B) = A(A<B) ;

A = [0 2 9; 5 7 3; 4 6 1];
C = [1 2 3; 4 5 6; 7 8 9];
B = zeros(6);
B(1:3,1:3) = A;
B(4:6,4:6) = C;