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Date:         Mon, 17 Nov 2008 05:28:05 -0500
Reply-To:     Gerhard Hellriegel <gerhard.hellriegel@T-ONLINE.DE>
Sender:       "SAS(r) Discussion" <SAS-L@LISTSERV.UGA.EDU>
From:         Gerhard Hellriegel <gerhard.hellriegel@T-ONLINE.DE>
Subject:      Re: what's the difference between %If and if in data step

you should always keep in mind that the macro statements, including %if...% then, %do...%end ... are always resolved before a step is running. So you cannot reference to any datastep-variables while the %-statements are resolved. You can only have influence on the variable-names, not on the contents. And you can only use the names in %if, you have nothing more at the moment, the %if is resolved. Gerhard

On Mon, 17 Nov 2008 15:28:12 +0530, Anindya Mozumdar <anindya.lugbang@GMAIL.COM> wrote:

>> Does that mean %if is used when there is macro variables? > >Yes, %if can be used only with macro definitions, i.e inside a >%macro... %mend block. > >-- >Anindya Mozumdar >http://www.anindyamozumdar.com


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