How to Check dimension mismatch of an element?

My question is a not very clear.

EG let s say, q , 1X2 array. q(1)=1 q(2)=2 q(3) does not exist

What I want is that I need to Check q(3) exist or not. If q(3) does not exist, break the while loop.

How to write the code to do that

I tried t=isempty(q(3)); However, it is not empty but not existing. So how to do that?

Thanks

Answer 1

[Iain]

numel(q) < 3