Basic if statement with a cell array

Hello all,

Let's say I have a basic cell array : x = {1 2 3 4 5 8}. Now, I want to verify that this array only contains those numbers and if not return an error message.

Like so:

if x ~= 1 | 2 | 3 | 4 | 5 | 8 

            disp('error');

end

How would I make this work? Please note that it needs to remain a cell array.

Thank you

Answer 1

[the cyclist]

If I understand correctly, this will work

if not(all(ismember(cell2mat(x),[1 2 3 4 5 8])))
  disp('error');
end