Find minimum in matrice

Hey guys, thanks in advance

I have this matrix, that always has zeros, but also other values. I want to find the minimum of the matrix, besides the zeros, how can I do that?

Answer 1

[patrick1704]

Hi,

If you only care about the value and not the index, you could do something like this:

min(R1_matrix(R1_matrix ~= 0))

If you care about the index you could do something like:

R1_matrix(R1_matrix == 0) = inf;

min(R1_matrix)

Answer 2

[KSSV]

Let A be your matrix.

A(A==0) = NaN ;  % replace 0's with NaNs
[val,idx] = min(A)

Or, use:

 val = min(A(A>0))