Finding 2nd minimum value in an array

I want to find the 2nd minimum value in an array. min(A) can be used to find the minimum value, but I want to find the the number greater than minimum (2nd minimum). Can anyone help me in doing that???

Answer 1

[Andrei Bobrov]

A2 = sort(A(:));
out = A2(2);

other way:

A2 = unique(A(:));
out = A2(2);

or:

out = min(setdiff(A(:),min(A(:))));

etc.

[Andrei Bobrov]

the third minimum

A2 = unique(A(:));
out = A2(3);