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st: How to draw a smoothed hazard curve with graph twoway


From   "Marjo.Pyy-Martikainen@stat.fi" <Marjo.Pyy-Martikainen@stat.fi>
To   "statalist@hsphsun2.harvard.edu" <statalist@hsphsun2.harvard.edu>
Subject   st: How to draw a smoothed hazard curve with graph twoway
Date   Mon, 5 May 2008 07:49:42 -0700

Hi,

how can I reproduce a smoothed hazard curve plotted by stcurve after a Cox ph
model
with graph twoway (my aim is to overlay two smoothed hazard curves based on two
different data sets so I think I need to use the graph twoway command at least
for one of the hazard curves)?. I cannot figure out how the smoothing done by
stcurve
can be replicated with graph twoway.  Can someone please give me a hint
how to modify the code below?

stcox <covariates>, basehc(h)
stcurve, hazard width(1)

graph twoway (line h _t, sort)


Thank you in advance.

Marjo Pyy-Martikainen



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