On Wed, 29 May 2002, Shige Song wrote:
> Dear All,
>
> Has anyone implemented S/R code for what economists called
> "split-population model" and what biostatisticians called "cure model"?
> Here are some references:
> ----------------------------------------------------------------------------------------------------
> Maller, R.A. and Zhou, X. Survival Analysis with Long Term Survivors,
> Wiley series in probability and statistics, John Wiley,
> Chichester.
>
> Schmidt, P. and Witte, A. (1989), "Predicting criminal recidivism
> using 'split population' survival time models",
> Journal of Econometrics 40: 141-159.
> ----------------------------------------------------------------------------------------------------
> Thanks!
survReg allows user-specified distributions which should allow you to fit
some accelerated-life distributions with mass at infinity. Otherwise,
just write down a log-likelihood and maximize it, which would only need a
few lines of S code.
--
Brian D. Ripley, ripley@stats.ox.ac.uk
Professor of Applied Statistics, http://www.stats.ox.ac.uk/~ripley/
University of Oxford, Tel: +44 1865 272861 (self)
1 South Parks Road, +44 1865 272860 (secr)
Oxford OX1 3TG, UK Fax: +44 1865 272595
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