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Re: st: Re: memory size 7 data merging

From   "Michael Blasnik" <>
To   <>
Subject   Re: st: Re: memory size 7 data merging
Date   Mon, 24 Sep 2007 09:10:20 -0400

tabulate the _merge variable after using the nokeep option and you can just look at the resulting number of observations to calculate how many _merge==2 observations there would have been (at least if you aren't doing a many-to-many merge, which you shouldn't be). Obviously the nokeep option will be of little help if there would be few _merge==2 observations.

Michael Blasnik

----- Original Message ----- From: "Joseph Coveney" <>
To: "Statalist" <>
Sent: Tuesday, September 25, 2007 12:44 AM
Subject: Re: st: Re: memory size 7 data merging


With -nokeep-, would you need to sacrifice any -assert _merge == 3-
and -assert inlist(_merge, 1, 3)-?  I would dread not being able to take
advantage of -assert- after a -merge- with the datasets that I get handed.
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