R help - Jul 2004 - Porting plotterm() & gamterms() from s-plus

I'm trying to plot pspline'd explanatory variables from coxph() models
as per Therneau and Grambsch (Modeling Survival Data: Extending the Cox Model). 
They have s-plus functions for this at:

http://www.mayo.edu/hsr/people/therneau/book/sfunction/gamterms.s
http://www.mayo.edu/hsr/people/therneau/book/sfunction/plotterm.s

I'd like to make these plots in R, but they make use of non-R functions, and
I'm not sure how to adapt gamterms and plotterm to R.  Have others done
this, or does anyone have advice?

Thanks,

Jacob Etches
University of Toronto


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On Fri, 23 Jul 2004, Jacob Etches wrote:
> I'm trying to plot pspline'd explanatory variables from coxph()
models as per Therneau and Grambsch (Modeling Survival Data: Extending the Cox
Model).  They have s-plus functions for this at:
>
> http://www.mayo.edu/hsr/people/therneau/book/sfunction/gamterms.s
> http://www.mayo.edu/hsr/people/therneau/book/sfunction/plotterm.s
>
> I'd like to make these plots in R, but they make use of non-R
functions,
> and I'm not sure how to adapt gamterms and plotterm to R.  Have others
> done this, or does anyone have advice?
The termplot() function in R can already handle pspline() terms.

	-thomas