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st: Re: weirdness in merging


From   "Michael Blasnik" <michael.blasnik@verizon.net>
To   <statalist@hsphsun2.harvard.edu>
Subject   st: Re: weirdness in merging
Date   Thu, 27 Feb 2003 12:57:36 -0500

By default, -merge- will not overwrite any existing data even if it is
missing values.  You need to specify the update option in your merge
command.

Michael Blasnik
michael.blasnik@verizon.net

----- Original Message -----
From: "Huiber Gabi (nat1gxh)" <nat1gxh@ups.com>
To: <statalist@hsphsun2.harvard.edu>
Sent: Thursday, February 27, 2003 12:22 PM
Subject: st: weirdness in merging


> Hello all,
>
> My problem should be simple. I have a file A, and two temporary files
"`B'"
> and "`C'".
>
> I have two variables in A, call them a and b, by which I am merging file A
> first with "`B'", then with "`C'". I do so because "`B'" and "`C'" consist
> of four variables each: a, b, c and d. I want to get c and d into A. Files
> "`B'" and "`C'" match separate subsets of the values of a and b, but the
> matches add up exactly to the full set A, so at the end of these two
simple
> merge operations, A should be wider by two non-missing variables: c and d.
>
> It doesn't work, and I don't see why. My code goes like this:
>
...snip...


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