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Re: st: Survival analysis


From   Maarten buis <maartenbuis@yahoo.co.uk>
To   statalist@hsphsun2.harvard.edu
Subject   Re: st: Survival analysis
Date   Mon, 31 Aug 2009 07:01:44 +0000 (GMT)

--- On Mon, 31/8/09, moleps islon wrote:
> However what I´m looking for is a way to find the exact
> time analytically from where the curves are parallel. I
> believe the PH assumption is fulfilled before and after
> this point.

You have to be more exact about what is being parallel. 
Usually it is just another way of saying that the PH 
assumption is violated.

-- Maarten

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

http://www.maartenbuis.nl
-----------------------------------------


      

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