Dear All I have the following two datasets for joint modeling the survival and longitudinal data. However when I run the joint model I get the following error. I am new to R, may someone assist
Error in `[.data.frame`(lmeObject$data, all.vars(TermsX)) : undefined columns selected Data structure for the longitudinal analysis is: str(cd4long) 'data.frame': 464 obs. of 6 variables: $ id1 : int 1011555 1011555 1011555 1011555 1011558 1011558 1011558 1011558 1011568 1011568 ... $ week : int 2 4 6 12 2 4 6 12 2 4 ... $ cd4countwk: int 241 137 325 283 235 219 634 465 111 316 ... $ pred : Factor w/ 2 levels "Placebo","Prednisolone": 2 2 2 2 2 2 2 2 2 2 ... $ outcome : int 0 0 0 0 0 0 0 0 0 0 ... $ surv4 : int 1137 1137 1137 1137 1097 1097 1097 1097 1129 1129 .. Data structure for the survival analysis is as 'data.frame': 116 obs. of 6 variables: $ id1 : int 1011555 1011558 1011568 1011575 1011577 1011581 1011592 1011957 1011961 1011964 ... $ week : int 0 0 0 0 0 0 0 0 0 0 ... $ cd4countwk: int 241 235 111 68 146 516 150 64 13 220 ... $ outcome : int 0 0 0 0 0 0 0 0 0 0 ... $ surv4 : int 1137 1097 1129 1099 634 1137 1100 729 731 736 ... $ pred : int 1 1 1 0 1 1 0 1 0 0 … Thanks Isaac ______________________________________________ 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.
