Dear All, I could not locate an implementation of the Weighted Kaplan-Meier Statistics proposed by Pepe and Fleming, Biometrics. 1989 Jun;45(2):497-507 (http://www.ncbi.nlm.nih.gov/pubmed/2765634) in R. I am wondering if anyone is aware of a R implementation of the test statistics proposed in the paper. Thanks, Ritwik Sinha ritwik.sinha at gmail.com | +12033042111 | http://ritwik.sinha.googlepages.com/