SAS 9.4 Macro Language, 2nd Edition

Chapter 5

Scopes of Macro Variables

Scopes of Macro Variables

Global Macro Variables

Local Macro Variables

Writing the Contents of Symbol Tables to the SAS Log

How Macro Variables Are Assigned and Resolved

Examples of Macro Variable Scopes

Changing the Values of Existing Macro Variables

Creating Local Variables

Forcing a Macro Variable to Be Local

Creating Global Macro Variables

Creating Global Variables Based on the Value of Local Variables

Special Cases of Scope with the CALL SYMPUT Routine

Overview of CALL SYMPUT Routine

Example Using CALL SYMPUT with Complete DATA Step and a Nonempty Local Symbol Table

Example Using CALL SYMPUT with an Incomplete DATA Step

Example Using CALL SYMPUT with a Complete DATA Step and an Empty Local Symbol Table ...