How to check if all of the elements in an array are the same, in matlab?

Question

There must be a simple matlab way of doing this. I have a row vector and I want to check if all of the elements are equal. Brute forcing this in a loop is easy, but looking for a more efficient approach :) The elements are integers

Answer 1

I think it can be as simple as

if all(v == v(1)) 

Another method would be

if range(v) == 0 

Answer 2

Another solution:

numel(unique(v))==1