-help isid-
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Maarten L. Buis
Department of Social Research Methodology
Vrije Universiteit Amsterdam
Boelelaan 1081
1081 HV Amsterdam
The Netherlands
visiting adress:
Buitenveldertselaan 3 (Metropolitan), room Z214
+31 20 5986715
http://home.fsw.vu.nl/m.buis/
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-----Original Message-----
From: [email protected] [mailto:[email protected]]On Behalf Of Raoul C Reulen
Sent: donderdag 24 november 2005 12:36
To: [email protected]
Subject: st: check for double id-numbers
Hi,
I have a data file and I want to know whether there are id-numbers that are used twice in the dataset? How can I run a check on this? Thanks.
Raoul
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* For searches and help try:
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* http://www.stata.com/support/statalist/faq
* http://www.ats.ucla.edu/stat/stata/
