Class for a dataset of survival data.
groups
The group numbers. Is an integer vector of length number of stages times number of groups.
stages
The stage numbers of the trial. Is an integer vector of length kMax
.
overallEvents
The cumulative events.
overallAllocationRatios
The cumulative allocations ratios.
overallLogRanks
The overall logrank test statistics.
allocationRatios
The allocation ratios.
logRanks
The logrank test statistics.
This object cannot be created directly; better use getDataset()
with suitable arguments to create a dataset of survival data.