SAS Variable lists allows you to simplify the variable notations in your Data Step code. Very often we forget that capability of the SAS programing language which can be particularly useful when lot of variables have similar name and have to processed together.
You are working in a Data Step and would like to use 30 variables in an aggregation function like sum or mean (etc.) For doing that, you could hardcode the 30 variables in the function argument or eventually create a SAS macro for doing that. Another option would be to use SAS variable list. This tips and tricks first explain the different kind of variable list:
You have some SAS experience and know how to program a Data Step. You have lot of variables to process in your tables.
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