Dear All, I would like to use R function 'selectFGR' of fine gray model in competing risks model. I used the 'Melanoma' data in 'riskRegression' package. Some of the variables are factor. I get solution for full model but not in variable selection model. Any advice how to use factor variable in 'selectFGR' function. The following R code is produced below for reproducibility.
library(riskRegression) library(pec) dat <-data(Melanoma,package="riskRegression") Melanoma$logthick <- log(Melanoma$thick) f1 <- Hist(time,status)~age+sex+epicel+ulcer df1 <-FGR(f1,cause=1, data=Melanoma) df1 df <-selectFGR(f1, data=Melanoma, rule ="BIC", direction="backward") Thanks in advice for your suggestion. Is there any alternative solution ? Regards Amalraj raja The University of Aberdeen is a charity registered in Scotland, No SC013683. Tha Oilthigh Obar Dheathain na charthannas clàraichte ann an Alba, Àir. SC013683. ______________________________________________ R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see 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.
