Dear R Friends, I'm a medical doctor with some knowledge about statistic and programming. I want to analysis and compare data of different countries with survival or popEpi tools in R. I couldn't able to make tables with one row for every people of countries without illness. I can made a data table look like as:
time country at.risk from0to1 sk zf from0to0 1 AFG 40363639 1 K F 0 I try to prepare for analysis with survtab_ag function of Epi package. When I run st <- survtab_ag(time ~ cuntry, data = xxxx, surv.type = "surv.obs",surv.breaks=list(xxxx$time), + surv.method = "lifetable", + d = "from0to1") I see just the error message: Error in sort.int(x, na.last = na.last, decreasing = decreasing, ...) : 'x' must be atomic Can any body help me for preparing this kind tabulated data without surv() to other survival functions? Best regards from Turkey Tanju Aktug [[alternative HTML version deleted]] ______________________________________________ R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see 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.