Prof Brian Ripley <[EMAIL PROTECTED]> writes: > > I'm doing the same job as Hegre et al. (studying civil wars) but with the > > counting process formulation of the Cox model. (I use intervals, my formula > > looks like Surv(start,stop,status)~ etc.). > > Careful, that is left- and right- censored, not intervals. Surv has a > type= argument.
Nitpick: That's left-*truncated* and right-censored (the status refers to the condition at the right end, people who die before the start are not registered at all). -- O__ ---- Peter Dalgaard Blegdamsvej 3 c/ /'_ --- Dept. of Biostatistics 2200 Cph. N (*) \(*) -- University of Copenhagen Denmark Ph: (+45) 35327918 ~~~~~~~~~~ - ([EMAIL PROTECTED]) FAX: (+45) 35327907 ______________________________________________ [EMAIL PROTECTED] mailing list https://www.stat.math.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html