[R] How to obtain nonparametric baseline hazard estimates in the gamma frailty model?

[Terry Therneau]

On 11/03/2013 05:00 AM, r-help-request at r-project.org wrote:
> I can easily get the other parameter estimates by using coxph() but don't
> know how to get the baseline hazard estimates from it. Does anyone know how
> to obtain nonparametric baseline hazard estimates in the gamma frailty
> model?
>
> Thanks,
> YH
>

I don't see what the problem is.

  fit1 <- coxph(Surv(time, status) ~ age + ph.ecog + frailty(inst), data=lung)
  sfit <- survfit(fit1)
  plot(sfit)


Please give an actual example of the problem.

Terry Therneau