How to mask cells of certain values?

The following works well:

A = [1 2 3 4 5];

A > 2
0  0 1 1 1

But, how can i mask A==1 and A ==3, so getting the following result (for example putting the values that are to be masked in a vector):

    mask_array = [1 2];
    A ~= mask_array  
    0 1 0 1 1

Answer 1

[Image Analyst]

Try this:

mask = (A == 1) | (A == 3) % 1 for either 1 or 3

Or maybe you mean

mask = (A == 1) | (A >= 3) % 1 for 1 or anything 3 or more.

[Rightia Rollmann]

Thanks! I meant the first solution. Is there a more compact way to write this code? (There are a large number of values that should be masked and it would be more convenient to write something like below)

OR(A == 1,3,...)