Find minimum in matrice

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Miguel Albuquerque
Miguel Albuquerque 2022-7-16
回答： patrick1704 2022-7-16
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?

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patrick1704
patrick1704 2022-7-16
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)

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KSSV
KSSV 2022-7-16
编辑：KSSV 2022-7-16
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))

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