The function is based on the scripts from https://github.com/AlexanderYogurt/censored_ExtremelyRandomForest to perform censored quantile random forest.
crf.km( fmla, ntree, nodesize, data_train, data_test, yname, iname, tau, xname = NULL, calibrate_taus = c(0.1, 0.5, 0.9), honesty = TRUE, method = "grf", splitrule = "extratrees", nnb = FALSE, reg.split = FALSE )