Stata The Stata listserver
[Date Prev][Date Next][Thread Prev][Thread Next][Date index][Thread index]

st: RE: stcox with continuously time-varying covariates only


From   "Salah Mahmud" <salaheddin.mahmud@mcgill.ca>
To   <statalist@hsphsun2.harvard.edu>
Subject   st: RE: stcox with continuously time-varying covariates only
Date   Thu, 28 Aug 2003 10:15:58 -0400

Stcox, estimate tvc(var)


Regards,

Salah

Dr. Salaheddin Mahmud
Division of Cancer Epidemiology
Department of Oncology, McGill University
Gerald Bronfman Centre
546 Pine Avenue West
Montreal, Quebec
Canada H2W 1S6
Ph: (514) 398-8191.
Fax: (514) 398-5002.
Salaheddin.mahmud@mcgill.ca
 
> -----Original Message-----
> From: owner-statalist@hsphsun2.harvard.edu [mailto:owner-
> statalist@hsphsun2.harvard.edu] On Behalf Of KRISTIEN VERHEYEN
> Sent: Thursday, August 28, 2003 9:49 AM
> To: 'statalist@hsphsun2.harvard.edu'
> Subject: st: stcox with continuously time-varying covariates only
> 
> Hello,
> 
> I am trying to fit a Cox model on a dataset with both fixed and time-
> varying
> covariates (tvc). However, Stata will not fit a model with tvc only. I
> have
> received two different error messages when trying to do this:
> 
> stcox, tvc(var)
> last estimates not found
> (r301)
> 
> or
> 
> stcox, tvc(var)
> option tvc( ) not allowed
> (r198)
> 
> It works fine when I also include a fixed variable in the model -
> unfortunately none of my fixed variables are significant but the tvc
are.
> I
> have found a similar query in the Statalist archives but unfortunately
no
> answer! Please can somebody help.
> 
> Thank you,
> 
> Kristien Verheyen
> PhD student
> 
> **********************************************
> Visit our website at www.aht.org.uk
> **********************************************
> 
>
########################################################################
##
> ###########
> This e-mail message has been scanned for Viruses and Content and
cleared
> by MailMarshal
> For more information please visit www.marshalsoftware.com
>
########################################################################
##
> ###########
> *
> *   For searches and help try:
> *   http://www.stata.com/support/faqs/res/findit.html
> *   http://www.stata.com/support/statalist/faq
> *   http://www.ats.ucla.edu/stat/stata/

*
*   For searches and help try:
*   http://www.stata.com/support/faqs/res/findit.html
*   http://www.stata.com/support/statalist/faq
*   http://www.ats.ucla.edu/stat/stata/



© Copyright 1996–2014 StataCorp LP   |   Terms of use   |   Privacy   |   Contact us   |   What's new   |   Site index