Dynamic variable names in SAS

Question

Is there a way in SAS to specify dynamic variable names in code? i.e. use different variables on different observations based on the value of another variable?

For

Answer 1

data want;
    set have;
    length _var_name $32 _var_num 5;
    array vars(*) var: ;
    /* if you want name of variable */
    _var_name=VNAME(vars(index));
    /* if you want numeric suffix of variable 
            and suffix is not same as position of variable in array
          (so that vars(index) is not usable */
    _var_num=INPUT(SUBSTR(_var_name, ANYDIGIT(_var_name)),32.);
run;

So what you need is VNAME() function.