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st: RE: duplicate values of variables
Search the help files for 'duplicates'.
This should give you the info you need.
Justin White
-----Original Message-----
From: [email protected]
[mailto:[email protected]] On Behalf Of Carter Rees
Sent: Tuesday, October 24, 2006 3:47 PM
To: [email protected]
Subject: st: duplicate values of variables
Statalist,
I have a data set in which the unit of analysis is the survey
respondent.
Each respondent was asked to nominate up to ten friends and enter a
unique
id for those friends in the variables friend1-friend10. What I would
like
to do is run a search through friend1-10 for each respondent to identify
if
the respondent nominated any of the friends more than once by mistake.
If
they did I would like to be able to create a variable(s) which let me
know
the id of the duplicated friend.
Aid f1 f2 f3 f4 f5 f6 f7 f8 f9 f10
22 12 23 23 44 . . . .
.
.
33 33 67 90 . 78 99 . .
.
.
44 56 89 90 88 . . . .
.
.
55 34 35 35 . 34 67 89 90
77
66
Cheers,
Carter
*
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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/
