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Re: st: AW: How to get rid of duplicate individuals in a dataset?


From   Ekaterina Hertog <ekaterina.hertog@sociology.ox.ac.uk>
To   statalist@hsphsun2.harvard.edu
Subject   Re: st: AW: How to get rid of duplicate individuals in a dataset?
Date   Sun, 13 Sep 2009 20:14:11 +0100

Thanks a lot! It worked after a bit of tinkering needed to ensure that specifically the observations from a fuller dataset are kept,
warm regards,
Ekaterina


In message <000001ca3491$b05652b0$1102f810$@weiss1@gmx.de> statalist@hsphsun2.harvard.edu writes:
> 
> <> 
> 
> " I cannot use duplicates I think because the two datasets do not have
> exactly the same variables"
> 
> 
> 
> The -duplicates- suite of commands allows you to specify a -varlist- (which
> should contain the variables common to both datasets), so give it a try...
> 
> 
> HTH
> Martin
> 
> -----Ursprüngliche Nachricht-----
> Von: owner-statalist@hsphsun2.harvard.edu
> [mailto:owner-statalist@hsphsun2.harvard.edu] Im Auftrag von Ekaterina
> Hertog
> Gesendet: Sonntag, 13. September 2009 18:37
> An: statalist@hsphsun2.harvard.edu
> Betreff: st: How to get rid of duplicate individuals in a dataset?
> 
> Dear all,
> 
> I had two datasets of partially overlapping individuals (and their
> characteristics) which I merged into 1 file using append. At the moment
> cannot think of how to get rid of the individuals which appear twice in the
> resulting dataset because of the overlap in the initial datasets. I cannot
> use duplicates I think because the two datasets do not have exactly the same
> variables. To be precise variables of dataset1 are a subset of variables of
> dataset2. As a result when I merged them into 1 dataset the entries for the
> same customer coming from dataset1 is not exactly identical to the entry
> coming from dataset2. I need to remove all the entries for those individuals
> from dataset1 which also appear in dataset2 and keep all the non-overlapping
> individuals. 
> 
> I will be very grateful for any advice,
> Warm regards,
> Ekaterina
> 
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-- 
Ekaterina Hertog (nee Korobtseva)
Nissan Institute of Japanese Studies
27 Winchester Road, Oxford
OX2 6NA


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