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st: RE: Procedure stcox fails in Stata 10


From   "Villa Lora, Juan Miguel" <juanmiguelv@iadb.org>
To   "statalist@hsphsun2.harvard.edu" <statalist@hsphsun2.harvard.edu>
Subject   st: RE: Procedure stcox fails in Stata 10
Date   Fri, 2 Oct 2009 17:41:20 -0400

I can infer from the help file that it is used webuse drugtr rather than webuse kva. There are not such variables on kva.

-----Original Message-----
From: owner-statalist@hsphsun2.harvard.edu [mailto:owner-statalist@hsphsun2.harvard.edu] On Behalf Of Richard J Stoll
Sent: Viernes, 02 de Octubre de 2009 05:33 p.m.
To: statalist@hsphsun2.harvard.edu
Subject: Re: Procedure stcox fails in Stata 10

The variables drug and age are not in the dataset kva.....

On Fri, 2 Oct 2009, Grealy, Patrick J wrote:

> Did I corrupt my Stata install or has anyone else noticed a problem with stcox all of a sudden? After applying latest updates, Oct 1 version, the stcox procedure fails to execute. For example:
>
> . version
> version 10.1
>
> . update all
>
> ----------------------------------------------------------------------
> ----------
> > update ado
> (contacting http://www.stata.com)
> ado-files already up to date
>
> ----------------------------------------------------------------------
> ----------
> > update utilities
> (contacting http://www.stata.com)
> utilities already up to date
>
> ----------------------------------------------------------------------
> ----------
> > update executable
> (contacting http://www.stata.com)
> executable already up to date
>
> . webuse kva
> (Generator experiment)
>
> . stset failtime
>
>      failure event:  (assumed to fail at time=failtime) obs. time
> interval:  (0, failtime]  exit on or before:  failure
>
> ------------------------------------------------------------------------------
>        12  total obs.
>         0  exclusions
> ------------------------------------------------------------------------------
>        12  obs. remaining, representing
>        12  failures in single record/single failure data
>       896  total analysis time at risk, at risk from t =         0
>                              earliest observed entry t =         0
>                                   last observed exit t =       140
>
> . stcox drug age
> invalid syntax
> r(197);
>
>
> *
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>
>

------------------------------------------------------------------------
Richard J. Stoll * Professor of Political Science * Rice University Dept. Political Science MS 24 * P.O. Box 1892 * Houston TX 77251-1892
E-mail: stoll@rice.edu * Tel: 713-348-3362 * FAX: 713-348-5273

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