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Re: st: empty dataset; display gives impossible answer


From   "A.M. Vos" <a.vos@erasmusmc.nl>
To   statalist@hsphsun2.harvard.edu
Subject   Re: st: empty dataset; display gives impossible answer
Date   Wed, 30 Jun 2004 10:52:23 +0200

that was my first thought too, but it is not. Neither is UNIEKNR the 11th
variable.
and I would expect either two stata answers (because I asked display two
variables), or an error message, or just nothing.
It's just curiosity, it may not be important at all, but I would like to
understand it.
Annelies

Toyoto Iwata wrote:

> Sorry, perhaps this is my mistake.
>
> CL_NR was the eleventh variable. and Stata should be reporting
> its token.
>
> At 17:09 04/06/30 +0900, I wrote:
> > In case "CLPL =. "
> >
> > .list (varlist you need for the diagnosis)
> >
> >
> > Toyoto
> >
>
> > the "keep" I had an empty dataset, with only the names of all (about 50)
> > variables. Why than did "display <variable1> <variable2>" give an
> > answer, and what does it mean?
> >
> > . dis _N
> > 8200
> >
> > . keep if (FIRSTCAS==1 & CLPL~=1)
> > (8200 observations deleted)
> >
> > . dis CL_NR UNIEKNR
> > 11
> >
> > thanks for any thougts,
> > Annelies
> >
> >
> > --
> > A.M. Vos
> > dept. of Public Health
> > Erasmus MC
>
> *
> *   For searches and help try:
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--
A.M. Vos
dept. of Public Health
Erasmus MC
University Medical Center Rotterdam
P.O. Box 1738
3000 DR Rotterdam
The Netherlands
Tel: +31 (10) 4087502
Fax: +31 (10) 4089449
email: a.vos@erasmusmc.nl


*
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