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st: AW: How can I merge two records within the same dataset?


From   "Martin Weiss" <martin.weiss1@gmx.de>
To   <statalist@hsphsun2.harvard.edu>
Subject   st: AW: How can I merge two records within the same dataset?
Date   Fri, 28 Aug 2009 14:26:31 +0200

<>

Is there a way to tell which company is represented multiple times w/o going
through the entire dataset? If so, are there -exactly- two records for any
company in need of a -merge-, or could there be multiple ones?

HTH
Martin


-----Ursprüngliche Nachricht-----
Von: owner-statalist@hsphsun2.harvard.edu
[mailto:owner-statalist@hsphsun2.harvard.edu] Im Auftrag von Karen Bonner
Gesendet: Freitag, 28. August 2009 13:35
An: statalist@hsphsun2.harvard.edu
Betreff: st: How can I merge two records within the same dataset?

Hi

I have a wide dataset with variables spanning from 1999-2008. Each row
of the dataset should contain a unique record relating to a company,
however I have several cases in which the id for the company changed
over time and thus the data for one company is contained on two separate
rows e.g from 1999-2003 is contained on row 1 and the data for 2004-08
for the same company (although under a different id) is on row 2. I
would like to know if there is a way to merge these two rows into one
without having to replace the observation for each individual variable
one at a time? 

 

Thanks

 

Karen 


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