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st: RE: deleting duplicate observations


From   "Nick Cox" <n.j.cox@durham.ac.uk>
To   <statalist@hsphsun2.harvard.edu>
Subject   st: RE: deleting duplicate observations
Date   Tue, 8 Oct 2002 09:32:11 +0100

Kompal Sinha
> 
> I have household level data in following format:
> HHID var1 var2
> 1     5    6
> 1     5    6
> 1     5    6
> 2     5    7
> 2     5    7
> 4     9    6
> 
> I want it in the following format now:
> HHID var1 var2
> 1     5    6
> 2     5    7
> 4     9    6
> 
> How can I retain observations with unique HHID????
> 

In addition to several specific suggestions, 
see the FAQ 

How do I identify duplicate observations in my data?
http://www.stata.com/support/faqs/data/dups.html

and type 

. findit duplicates 

to identify various canned programs, including 
-dups-. 

Nick 
n.j.cox@durham.ac.uk 
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