MATLAB: Adding 3 numbers out of 5

Question

Hi,

I am trying to do a code for channel interference. I figured out everything else but I'm stuck at a few points.

I have 5 numbers stored under different names, A,B,C,D,E.

I want to take three at a time and add them together for example: A+B+C. I want matlab to do all the combinations. Is that possible? can you tell me how?

Thank you.

Answer 1

Sarah, you could use

 data    = [A B C D E];
 datasum = sum(combnk(data,3),2);