Try: ci.auc(all$D,all$pre,m="b") 2010/10/13 zhu yao <mailzhuyao at gmail.com>: > Dear useRs: > > I use pROC package to compute the bootstrap C.I. of AUC. > > The command was as follows: > > roc1<-roc(all$D,all$pre,ci=TRUE,boot.n=200) -- Miłego dnia