Aggregating variables

[kmh]

I'm new to SAS and programming in general.  I'd like to create a new variable by aggregating three variables into a mean scale. The three variables I want to combine are measured on a three point likert scale. I've been trying to figure out how to do this and I'm lost.  I feel like it should be simple. I would appreciate any help on coding. Thank you!  

[PaigeMiller · Accepted solution]

If your three variables are named a, b and c, then this works:

Y = mean(a,b,c);

[kmh]

Thank you so much. I knew it had to be simple!