SAS.GRAPH 9.1 Reference, Volumes I and II

ODS and Procedures that Support RUN- Group Processing

When you use ODS, it is wise to specify a QUIT statement at the end of every procedure that supports RUN-group processing. If you end every procedure step explicitly, rather than waiting for the next PROC or DATA step to end it for you, then the QUIT statement will cause the selection list to clear, and you will be less likely to encounter unexpected results.