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st: How can I merge two datasets with multiple unique identifiers?


From   Qursum Qasim <[email protected]>
To   [email protected]
Subject   st: How can I merge two datasets with multiple unique identifiers?
Date   Thu, 20 Jan 2011 10:32:19 -0500

Hi all,

I am trying to merge two datasets using the country and year variables
but one of the datasets also has a unique id for each observation.
When I try to merge using the command:
merge 1:1  country year using politynew

I get the error:
variables country year do not uniquely identify observations in the using data

What can I do to merge the two datasets without eliminating the unique
id from the using dataset?
Thanks!!

Best,
Qursum Qasim

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