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 lookin

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:

sum(abs(diff(v))) == 0

Answer 3

Another solution:

numel(unique(v))==1

Answer 4

How about: max(v) == min(v)? :-)