%substr

[GN0001]

Hello team

What is the reason  we use substr  in a macro?

I understand that some of the functions are built to be used in macro as well.

respectfully, 

bittenapple

[PaigeMiller · Accepted solution]

Macro functions, such as %SUBSTR, work on macro variables, and produce output that is can be manipulated by the macro processor.

Data step functions, such as SUBSTR, work on data set variables, and produce output that can be used in the DATA step.