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Date:         Fri, 18 Jan 2002 12:42:41 -0000
Reply-To:     Roland <roland.rashleigh-berry@VIRGIN.NET>
Sender:       "SAS(r) Discussion" <SAS-L@LISTSERV.UGA.EDU>
From:         Roland <roland.rashleigh-berry@VIRGIN.NET>
Organization: Virgin Net Usenet Service
Subject:      Re: age calculations etc

Just subtract one from the other since a date in SAS is just an integer.

days=refer-birth;

"David Yeates" <david.yeates@uhce.ox.ac.uk> wrote in message news:a2944u$q4g$1@news.ox.ac.uk... > Hi All, > > I have been puzzling over the following... > > Given the birth-date and another reference date refer-date I can calculate > the exact age using that old favourite macro > > %macro age(birth, refer); > int((intck('month',&birth,&refer)-(day(&birth)>day(&refer)))/12); > %mend age; > > where &birth and &refer are the two dates. Now what I need having > calculated the age is exactly how many days are there from the birthday in > the year corresponding to refer-date to refer-date itself. > > Any ideas very welcome. > > Kind regards > David > UHCE, Oxford University > >


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