It is hard to know exactly what you mean with such a generic question. If you mean "treat survival as a counting process", then the answer is yes. The survival package in S (which is the direct ancestor of the Splus package, which is the direct ancestor of the R package) was the very first to do this. I created the feature in 1984. Terry Therneau On 05/31/2013 05:00 AM, r-help-request at r-project.org wrote:> HiI have a question, Is there a package to do counting process in survival analysis with R?