*I´m writing to ask you how can I do Survivals Curves using Time-dependent *covariates? Which packages I need to Install?*
This is a very difficult problem statistically. That is, there are not many good ideas for what SHOULD be done. Hence, there are no packages. Almost everything you find in an applied paper (e.g. a medical journal) is wrong. Terry Therneau ______________________________________________ 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.