| Date: | Wed, 5 Sep 2007 08:48:14 -0700 |
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| Reply-To: | cherub <cherub2life@YAHOO.COM> |
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| Sender: | "SAS(r) Discussion" <SAS-L@LISTSERV.UGA.EDU> |
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| From: | cherub <cherub2life@YAHOO.COM> |
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| Subject: | SAS coding help |
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| Content-Type: | text/plain; charset=iso-8859-1 |
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Hi,
I need some help for my coding. Now I have a dataset sorted by date and id(see below)
Id date key
12 12May2001 1254
12 13Dec2004 1204
12 15Jan2005 1002
15 15Apr1998 0998
15 05Feb2000 0147
......
I need to generate a new variable which can give the rank for date by id, such as
Id date Key rank
12 12May2001 1254 1
12 13Dec2004 1204 2
12 15Jan2005 1002 3
15 15Apr1998 0998 1
15 05Feb2000 0147 2
......
Does somebody know how to generate this variable?
Thanks
Yanyan
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