2007/5/2, Jennifer Dillon <[EMAIL PROTECTED]>: > Hi, > > I'm trying to do a simple survival analysis on some data, and I'm having the > following problem (here's my code and the error message): > > out <- Surv(fup,event=status) > Error in Surv(fup, event = status) : argument "time2" is missing, with no > default >
I am not very familiar with this, but shouldn' t it be: out <- Surv(fup, status==1) where fup is your vector of time differences and status your vector to denote censored events (e.g. 1 is an uncensored event and 2 for a censored events). Have a look at section 12.2 of "introductory statistics with R" by P. Dalgaard -- A. Goralczyk Göttingen, Ger. ______________________________________________ R-help@stat.math.ethz.ch 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.
