I also tried fitting a spline to the resulting survival curve and the result was horrible. maybe spline won't work or knots need special handling.
overall, I must have the final point of the smooth survival to be same as the final point of the raw Cox survival and no flat days, the drops should be spread around. Thanks again everybody. Stephen ______________________________________________ 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.
