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

If you create an array of Var1 - VarN then you can easily reference the value stored in Index.

data have;
input Index  Var1   Var2  Var3;
cards;
1      78.3   54.7  79.8
3      67.2   56.2  12.3
2      65.3   45.2  98.1
1      56.2   49.7  11.3
1      67.2   98.2  98.6
;
run;

data want;
set have;
array vars(*) var: ;
var_index=vars(index);
run;