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st: RE: Merge data


From   "Balls, Joyce" <JBalls@psg.ucsf.edu>
To   "'statalist@hsphsun2.harvard.edu'" <statalist@hsphsun2.harvard.edu>
Subject   st: RE: Merge data
Date   Wed, 12 Nov 2003 14:39:18 -0800

Hello there,

As a new user to Stata as well I've used the following to merge data 

merge X1 using "C:\Filename", 
tab _merge
assert _merge~=3
then sort the data by X1

I hope this helps. 


Regards,


Joyce E. Balls, MPE
Project Coordinator
University of California, San Francisco
"Kind words can be short and easy to speak, but their echoes are truly
endless." ~ Author Unknown

 -----Original Message-----
From: 	Lok Wong [mailto:lokwong80@hotmail.com] 
Sent:	Tuesday, November 11, 2003 7:58 PM
To:	statalist@hsphsun2.harvard.edu
Subject:	st: Merge data

Hi,there,

I have one question about merging data..I am wondering if someone out there 
could help me with it.

Let's say data sets, A and B.. A includes {X1,X2,X3,X4} and B 
includes{X1,X2,X5}..Using X1 and X2, we could uniquely identify the 
individuals in the data...Moreover,the sample size of B is bigger that of 
A..I only want X5 of individuals in B who are also in A...How could I do 
this?

Thanks a lot..

Lok

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