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Re: st: Drop all that are listed in an external file
From 
 
lars Folkestad <[email protected]> 
To 
 
"[email protected]" <[email protected]> 
Subject 
 
Re: st: Drop all that are listed in an external file 
Date 
 
Sat, 25 Jan 2014 17:01:39 +0100 
Hi
What if you merge the two files, and then use the _merge to identify what id's to keep and what do drop. 
Lars
> Den 25/01/2014 kl. 16.50 skrev miriam geringer <[email protected]>:
> 
> Hi Statalist,
> 
> I have the following dataset:
> 
> Identifier        Corresponding data
> 1                    X
> 2                    Z
> 3                    D
> 4
> 4
> 4
> 5
> 5
> 5
> 5
> 6
> 6
> 6
> 7
> 8
> 
> On the other hand, I have a *txt file, which includes only identifiers
> that should be dropped from my dataset. A simple *txt including for
> example:
> 
> Identifier
> 2
> 3
> 4
> 
> Now, I want Stata to access this *txt file and drop all the
> observations in the dataset (based on the Identifier) that are in this
> specific *txt file. I know that I could just copy it into Stata, but
> since the list is very long I would prefer an "external" link to this
> file.
> 
> After dropping, it should look like:
> 
> Identifier        Corresponding data
> 1                    X
> 5
> 5
> 5
> 5
> 6
> 6
> 6
> 7
> 8
> 
> Is something like this possible?
> 
> Something like:
> drop if identifier exists using C:/*txt
> 
> Thanks!
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