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Date:         Thu, 15 Sep 2005 15:29:51 -0700
Reply-To:     Matthew Boswell <>
Sender:       "SPSSX(r) Discussion" <SPSSX-L@LISTSERV.UGA.EDU>
From:         Matthew Boswell <>
Subject:      Counting the first instance of a value
Content-Type: text/plain; charset=iso-8859-1

I have the following data:

Class ID A 10 B 11 B 10 C 12 A 13

Where ID is unique to each case and it is possible that a case might be in more than one class. We were trying to get a total count of the case, without counting duplicates (i.e. ID 10 would be counted twice above). Is there a syntax option to just count the first instance of a value when running an analysis (frequencies in this case?).



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