Am 28.03.2010 15:08, schrieb sdzhangping: > I??m very interested in the analysis of survival data of leukemic patients, > which involves competing risks and time-dependent covariates (infections or > relapse of leukemia after BMT). In my present work, I??d like to estimate the > risk of chemotherapy, BMT or gvhd on the onset and prognosis of invasive > fungal infections (IFI). In detail, the leukemic patients will receive > several cycles of chemotherapy and some of them will receive BMT. The > patients have three outcomes, that??s acquisition of IFI, death free from IFI > or IFI free survival. My puzzle is: > > (1)Dose multi-state model fit this situation? > > (2)I tried to fit coxphf model: fit = coxphf(Surv(start,stop,ifi==1)~bmt, > data=ifi). The system always goes wrong when variable ??gvhd?? was fitted. > [coxphf(Surv(start,stop,ifi==1)~bmt+gvhd, data=ifi)]. Is there something > wrong with my data format? > ted, minimal, self-contained, reproducible code. >
You were posting exactly this question already on Friday twice and then today twice. You have been pointed out that you might be using the wrong function. So why should anyone answer you question when you do not show any effort? You did not even ask back. Stefan
______________________________________________ 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.
