[R] Coxme time dependent

[Terry Therneau]

On 12/13/2013 05:00 AM, r-help-request at r-project.org wrote:
> i all,
>
>
>
> I am using the coxme function to fit random effects survival models.  The
> base survival models show a typical "J" shaped curve where survival drops
> sharply then plateaus over time interval.  I want to include a time
> covariate which could account for this non-linear decrease in survival over
> time.  However, I have not found a clear way to do this in the coxme
> models.  Any suggestions would be greatly appreciated.  Below is some
> sample code and data.
>
>
>
> -Jared
>

I don't understand what you need.  One of the advantages of the Cox model is that the 
baseline hazard function automatically accommodates such features, for both coxph and coxme.

Terry Therneau

PS: I can't make out the pattern of your sample data.  Perhaps you were depending on the 
html formatting?  R-help uses simple text only.