"gallon li" <[EMAIL PROTECTED]> wrote in news:[EMAIL PROTECTED]:
> Does anybody know if there is such a function to estimate the > distribution for interval censored data? > > survfit doesn't work for this type of data as I tried various > references. My reading of R-help posts by Therneau and Lumley is that interval censoring is only available for parametric estimates in the survival package. It's not KM, but perhaps this will be of interest: "Turnbull's Nonparametric Estimator for Interval-Censored Data" Suely Ruiz Giolo <http://www.est.ufpr.br/rt/suely04a.pdf> Giolo cites KLEIN, J. P, MOESCHBERGER, M. Survival Analysis. New York: Springer Verlag, 1997, for the algorithm. This MIT-CSAIL report says they have an available R package that handles interval censoring and time-dependent covariates: http://dspace.mit.edu/bitstream/1721.1/33957/1/MIT-CSAIL-TR-2006-055.pdf -- David Winsemius ______________________________________________ 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.
