[EMAIL PROTECTED] wrote: > Your example is not reproducible without 'library(survival)'. > When I include that, I get > > >> head(D,20) >> > stime status surv > 1 176 TRUE 176 > ... > > Objects of class "Surv" are from the contributed package survival, and you > need that attached to deal with them properly. > > > ... but even if you detach it, you do not get the symptoms shown:
> head(D,5) stime status surv.time surv.status 1 176 TRUE 176 1 2 67 TRUE 67 1 3 432 TRUE 432 1 4 77 TRUE 77 1 5 275 TRUE 275 1 > On Wed, 12 Dec 2007, [EMAIL PROTECTED] wrote: > > >> Full_Name: Edward McNeil >> Version: 2.6.1 >> OS: Windows >> Submission from: (NULL) (203.170.234.5) >> >> >> I want to show students how the survival object looks like in R. >> Reproducible example: >> >> library(MASS) >> data(Aids2) >> attach(Aids2) >> status <- status=="D" >> stime <- death-diag >> surv <- Surv(stime, status) >> D <- data.frame(stime, status, surv) >> head(D,20) >> stime status x..i.. >> 1 176 TRUE 176 >> 2 67 TRUE 67 >> 3 432 TRUE 432 >> 4 77 TRUE 77 >> 5 275 TRUE 275 >> 6 373 TRUE 373 >> 7 389 TRUE 389 >> 8 1027 TRUE 1027 >> 9 492 TRUE 492 >> 10 434 TRUE 434 >> 11 16 TRUE 16 >> 12 308 TRUE 308 >> 13 92 TRUE 92 >> 14 265 TRUE 265 >> 15 1052 FALSE 1052+ >> 16 132 TRUE 132 >> 17 527 TRUE 527 >> 18 581 FALSE 581+ >> 19 511 FALSE 511+ >> 20 151 TRUE 151 >> >> detach(Aids2) >> >> The 'surv' column is strangely labelled 'x..i..'. >> >> ______________________________________________ >> R-devel@r-project.org mailing list >> https://stat.ethz.ch/mailman/listinfo/r-devel >> >> > > -- O__ ---- Peter Dalgaard Øster Farimagsgade 5, Entr.B c/ /'_ --- Dept. of Biostatistics PO Box 2099, 1014 Cph. K (*) \(*) -- University of Copenhagen Denmark Ph: (+45) 35327918 ~~~~~~~~~~ - ([EMAIL PROTECTED]) FAX: (+45) 35327907 ______________________________________________ R-devel@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-devel
