Class which determines how the simulation (from data) procedure deals with subjects who are censored a long time before the analysis date.
analysis.date
The date the event prediction is performed on. If as.Date(NA)
then the latest censor/event date from the data set will be used as the analysis.date
ndays
All subjects who were censored more than ndays
before
analysis.date
will be changed
toWithdraw
Logical. If TRUE then the selected subjects will be withdrawn
rather than be censored. If FALSE, their censor date is replaced by analysis.date
visitschedule
number of days between visits for pfs data. If non-zero and
toWithdraw
is TRUE then the selectedsubjects are censored on the date their
latest visit would have been. See vignette for further details
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