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Date:         Mon, 14 Jul 1997 15:53:26 +0100
Sender:       "SAS(r) Discussion" <SAS-L@UGA.CC.UGA.EDU>
Subject:      Re: Testing Existence of a Macro Variable


Look into the SAS Guide to Macro Processing, Version 6, Second Edition.

On page 254 you will find the code of a macro that checks whether a macro variable is defined.

Patrick Druijts Statistical Programmer NV Organon The Netherlands

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