[R] smooth non cumulative baseline hazard in Cox model

[Peter Dalgaard]

Prof Brian Ripley <ripley at stats.ox.ac.uk> writes:

> > I'm doing the same job as Hegre et al. (studying civil wars) but with the
> > counting process formulation of the Cox model. (I use intervals, my formula
> > looks like Surv(start,stop,status)~  etc.).
> 
> Careful, that is left- and right- censored, not intervals.  Surv has a 
> type= argument.

Nitpick: That's left-*truncated* and right-censored (the status refers
to the condition at the right end, people who die before the start are
not registered at all).

-- 
   O__  ---- Peter Dalgaard             Blegdamsvej 3  
  c/ /'_ --- Dept. of Biostatistics     2200 Cph. N   
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