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RE: st: how to capture data (ID's) for use in macros


From   "Nick Cox" <n.j.cox@durham.ac.uk>
To   <statalist@hsphsun2.harvard.edu>
Subject   RE: st: how to capture data (ID's) for use in macros
Date   Tue, 13 May 2008 14:40:57 +0100

In addition, it seems from Jason's post that he should know about
-duplicates-. 

Nick
n.j.cox@durham.ac.uk 

Scott Merryman

See -levelsof-

-levelsof id if tag ==0, local(levels)-


Jason Ferris

> Is there a way to capture data, that is similar to r(varlist)?
> For example I have found repeated ID's in 1 dataset of which I want to
delete from 5 datasets.
> The code to find these for example:
> egen tag=tag(id)
> tab id if tag==0
>
> id         Freq.    Percent Cum.
> 4          1          25.00    25.00
> 9          2          50.00    75.00
> 21        1          25.00    100.00
> Total     4          100.00
>
> I would like the data 4, 9, 21 to be captured in a macro to be used
later (i.e., to delete from other datasets).
> I am using Stata 10 on Dell intel duo.

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