Exploring SAS Macro functions – eval and sysevalf
EVAL and SYSEVALF are the two macro functions that evaluate arithmetic expressions and logical expressions. First, let’s understand why do we need EVAl or the SYSEVALF function. In SAS, Macro’s are text-based which means there are no numeric variables. Whereas in the Data Step, numbers and characters are two separate things. Therefore, arithmetic and logical… (0 comment)