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Query: using lag(id).. summary

To: s-news@lists.biostat.wustl.edu
Subject: Query: using lag(id).. summary
From: "susan charman" <charmansusan@hotmail.com>
Date: Fri, 27 Apr 2001 07:34:14 -0000
Thank you to Brad Biggerstaff, Carlisle Thacker, Bert Gunter, Gerald Jean & Nick Ellis for there suggestions. It's seems I was too narrow in my search for a function and didn't realise that duplicated() existed. Many thanks for taking the time to reply.
 
Susan


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