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st: RE: duplicates for one variable


From   "Rienzo, C" <[email protected]>
To   <[email protected]>
Subject   st: RE: duplicates for one variable
Date   Wed, 24 Nov 2010 14:42:30 -0000

Hi try with 
Duplicates report "var"
Or duplicates list "var" 
If you want to drop then duplicates drop "var" if year==

HTH

Cinzia

-----Original Message-----
From: [email protected] [mailto:[email protected]] On Behalf Of Shehzad Ali
Sent: 24 November 2010 14:35
To: Stata List
Subject: st: duplicates for one variable

Hi listers,

I am looking to find duplicate observations on a certain variable 'time'. Here 
is what the data looks like:

id     time     var3
1       10        2.5
1       20       3.0
1       30       3.5
2       10       2.5
2       10       4.0

I want to identify the observations that are duplicate on the time variable 
only, i.e. the last observation in the dataset above.

I would appreciate your help.
Many thanks,
Shehzad



      

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