On Dec 19, 2013, at 5:32 AM, L... L... wrote: > Dear all, is there an R function to simulate random observations from a cure > fraction model (random observations with long-term survivos). > Some references how can I do this will be welcome. > Shouldn't be too hard to set up a mixture of weibull distributed event times with one component having a parameter less than "exponential" (to represent the cured fraction with survival typical of an average human population) and another with a hazard like an "exponential" or worse to represent the non-cured fraction. Watch out about how the shape parameters are defined. The survival package uses different parameterization than the rweibull definitions.
library(survival) ?survreg ?rweibull -- David Winsemius Alameda, CA, USA ______________________________________________ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
