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Re:st: Overlay stcurve graphs from different models


From   Maarten buis <maartenbuis@yahoo.co.uk>
To   statalist@hsphsun2.harvard.edu
Subject   Re:st: Overlay stcurve graphs from different models
Date   Sun, 12 Apr 2009 09:04:07 +0000 (GMT)

--- On Sun, 12/4/09, Ulrich Atz wrote:
> stcurve, hazard outfile(...) gives me a completely
> different output than using the predict hazard, haz command
> (weibull, exponential distribution). Why?

-stcurve- gives you the hazard curve at specified values of your
explanatory variables (and if you haven't explicitly specified 
those values than they are set at the mean), while -predict- 
will give you the hazards at the actually observed values of the
explanatory variables. For plotting the output from -stcurve- is 
probably better.

-- Maarten

-----------------------------------------
Maarten L. Buis
Institut fuer Soziologie
Universitaet Tuebingen
Wilhelmstrasse 36
72074 Tuebingen
Germany

http://home.fsw.vu.nl/m.buis/
-----------------------------------------


      

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