[R] survreg & gompertz

[David Winsemius]

On Nov 15, 2012, at 5:38 AM, Matthias Ziehm wrote:

> Hi all,
> 
> Sorry if this has been answered already, but I couldn't find it in the archives or general internet.

A Markmail/Rhelp search on:  gompertz survreg  ...brings this link to a reply by Terry Therneau. Seems to address everything you asked and a bit more

http://markmail.org/search/?q=list%3Aorg.r-project.r-help+gompertz+survreg#query:list%3Aorg.r-project.r-help%20gompertz%20survreg+page:1+mid:6xdlsmo272oa7zkw+state:results

(Depending on how your mailer breaks URLs you may need to paste it back together.)
> 
> Is it possible to implement the gompertz distribution as survreg.distribution to use with survreg of the survival library?
> I haven't found anything and recent attempts from my side weren't succefull so far.
> 
> I know that other packages like 'eha' and 'flexsurv' offer functions similar to survreg with gompertz support. However, due to the run-time environment were this needs to be running in the end, I can't use these packages :(
> 
> Same questions for the gompertz-makeham distribution.
> 
> Many thanks!
> 
> Matthias
-- 

David Winsemius, MD
Alameda, CA, USA