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


From   "Jason Ferris" <J.Ferris@latrobe.edu.au>
To   <statalist@hsphsun2.harvard.edu>
Subject   st: how to capture data (ID's) for use in macros
Date   Tue, 13 May 2008 09:58:46 +1000

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.

Cheers
Jason

Jason Ferris, BPsych(Hons) MBiostat
Research Officer
Australian Research Centre in Sex, Health and Society
Level 1
215 Franklin St
Melbourne VIC 3000
P: 61 (0)3 9285 5282
F: 61 (0)3 9285 5220


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