SAS Macros

IN operator in SAS macro

How to use the IN operator in SAS macro?

IN operator is used in the data step to replace multiple OR conditions. However, if you try to use IN Operator in SAS Macro then you will find that the IN operator is not available

eval and sysevalf

Exploring SAS Macro functions – Eval and Sysevalf

EVAL and SYSEVALF are the two macro functions that evaluate arithmetic expressions and logical expressions.Use the %Eval function to evaluate an arithmetic expression in SAS macro and use the %SYSEVALF function to evaluate floating-point arithmetic expressions.

SAS Macros

Coding efficiently using SAS macros

Macros can automatically generate SAS codes and allow you to make more dynamic and generalized SAS programs. Macros can help to greatly reduce the effort required to read or write repetitive SAS codes.

macro variables from sas dataset

Creating macro variables from SAS dataset

Macro variables in SAS are used extensively for reusing codes. You can create a multi-usable program in which analysis of variables can be controlled by updating the values of macro variables.
SAS provides an elegant solution to overcome these problems with the CALL SET routine. You can convert data step variables into macro variables with a few lines of code using the %SYSCALL SET routine. This routine also allows you to convert and process one observation of data step variables at a time thus saving memory usage.

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