Finding unique values from arrays of different sizes

I am trying to find the unique values from 4 different arrays but the sizes are different i.e., for 2 arrays size is c1=c2= [42,1] and for other two, it is c3=c4=[40,1].

For one part of the code where these dimensions were same I used

hElem = unique([c1 c2 c3 c4]);

But for the discussed case it is not possible since I am unable to make the matrix. Any suggestions?

Answer 1

[Stephan]

Hi,

transpose them:

A = [1; 2; 3];
B = [3; 4; 5];
C = [5; 6];
D = [8; 9];
% works_not = unique([A B C D])
works = unique([A' B' C' D'])

or arrange them like this:

also_works = unique([A; B; C; D])

Best regards

Stephan