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);
>
>
> *
> * For searches and help try:
> * http://www.stata.com/help.cgi?search
> * http://www.stata.com/support/statalist/faq
> * http://www.ats.ucla.edu/stat/stata/
>
>
------------------------------------------------------------------------
Richard J. Stoll * Professor of Political Science * Rice University
Dept. Political Science MS 24 * P.O. Box 1892 * Houston TX 77251-1892
E-mail: [email protected] * Tel: 713-348-3362 * FAX: 713-348-5273
*
* For searches and help try:
* http://www.stata.com/help.cgi?search
* http://www.stata.com/support/statalist/faq
* http://www.ats.ucla.edu/stat/stata/
