SELECT construct is used instead of IF statements - SAS

SELECT construct is used instead of IF statements

- When there is a long series of mutually existing conditions
- And comparison is numeric
- Because the CPU time is reduced by using SELECT.

SELECT GROUP:

Select: Beginning of the SELECT GROUP.
When: Identifies SAS statements meant for execution when a condition is true
Otherwise (optional): A statement is specified if no WHEN condition is met.
End: Ends a SELECT group.