Exported Functions That Were Imported From Other Packages
importexport.RdSurv and ggplot are imported from, respectively, the
survival and ggplot2 packages and are exported from
rms so that the user does not have to attach these packages to do
simple things.
Usage
Surv(time, time2, event,
type = c("right", "left", "interval", "counting", "interval2"),
origin = 0)
ggplot(data = NULL, mapping = aes(), ..., environment = parent.frame())