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Date:         Thu, 14 Dec 2006 13:39:26 -0800
Reply-To:     David L Cassell <davidlcassell@MSN.COM>
Sender:       "SAS(r) Discussion" <SAS-L@LISTSERV.UGA.EDU>
From:         David L Cassell <davidlcassell@MSN.COM>
Subject:      Re: Lag function in IML
In-Reply-To:  <OFF8C516CE.1B6CEBA0-ON03257244.0062F105-03257244.006309D9@serasa.com.br>
Content-Type: text/plain; format=flowed

ricardosilva@SERASA.COM.BR wrote: > >Hello, > >There's a lag function inside IML? > >Thanks > >Rick

No. Not all DATA step functions are implemented *directly* in SAS/IML.

But you *can* implement it yourself by looking at the previous row in your vector.

I would recommend against it, myself. Not everything needs to be done in IML. Consider doing some pre-IML work in data steps or PROC SQL to prepare your data first.

HTH, David -- David L. Cassell mathematical statistician Design Pathways 3115 NW Norwood Pl. Corvallis OR 97330

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