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st: Re: Retrieving a master dataset after merging


From   "Michael Blasnik" <michael.blasnik@verizon.net>
To   <statalist@hsphsun2.harvard.edu>
Subject   st: Re: Retrieving a master dataset after merging
Date   Sat, 09 Apr 2005 12:45:42 -0400

Well, I don't think you should ever save the new merged dataset on top of the master (i.e., don't use -save, replace-). If you follow this advice then you could just -use master-. Assuming you didn't follow this advice, you can retrieve the master dataset (if you didn't specify -update- as an option). Just type:

keep if _merge==1 | _merge==3
drop _merge

if the using dataset contains some variables not in the master dataset, you then drop those:

drop usingvar1 usingvar2 usingvar3...

Michael Blasnik
michael.blasnik@verizon.net

----- Original Message ----- From: "louis boakye-yiadom" <louisby@hotmail.com>
To: <statalist@hsphsun2.harvard.edu>
Sent: Saturday, April 09, 2005 12:24 PM
Subject: st: Retrieving a master dataset after merging



Dear All,
After doing a -merge-, can one retrieve the master dataset? If yes, how can it be done? Thank you.

Louis
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