MATLAB: Finding index of minimum of a subset of an array

minimum find array subset index

I want to find the index of the greater array for a subset within that array.
Example:
       A=[2 3; 1 8; 2 6; 3 1;]
       [row, col]=find(min(A([2 4], 2)));
This will compare the numbers 8 and 1, and I want to retrieve the index of A for the value of 1. Instead what this will output now is 2, since the subset being considered is [8 1]. What I want is for [row col] to equal [4 4], because this is the index in A where the minimum of the subset is located.
Any suggestions? Thanks,

Best Answer

B=A;
subset=false(size(A)); 
  subset([2,4],2)=true;
B(~subset)=inf;
[row,col] = find(B==min(B(:))),
Related Question