Matlab: Conditional sum

Question

I want to calculate a conditional sum of a vector.

Ex:

A = [1, 2, 3, 4, 5, 6]
Condtional: a > 4
Result = 5 + 6 = 11

How can I do this in Matlab?

Answer 1

result = sum(A(A>4));
assert(result==11);