Return the column(s) indices with minimum value which is not zero.

Consider a matrix H = 1x30.

The data in those elements are numbers 0, 1, 2, ......, n

I wanna be able select the column(s) with the values from 1.

If H has a '0', then columns having '1' must be returned.

If H has a '0', and has no 1s, then columns having '2' must be returned.

If H has a '0', and has no 1s and 2s, then columns having '3' must be returned.... and so on.

It should be able to return all the columns with a minimum value in it, where the minimum value cannot be zero. But it is any available minimum value after 0.

How do i achieve this?

Answer 1

[Walter Roberson]

any(H==min(H(H~=0)),1)