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Re: st: merge-by-observation in stata 10

From   Michael Norman Mitchell <>
Subject   Re: st: merge-by-observation in stata 10
Date   Sat, 08 May 2010 10:20:52 -0700

Dear Frederick

  The Stata 10 equivalent to merge file a and file b on observation is...

use a, clear
merge using b

As always, one should be very careful in performing merges by observation.

Best regards,

Michael N. Mitchell
See the Stata tidbit of the week at...

On 2010-05-08 2.09 AM, Frederick Guy wrote:
In Stata 11, one of the merge variants is a one-to-one merge by

merge 1:1 _n

is there an equivalent in Stata 10?



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