Class for a dataset of survival data.
groups
The group numbers.
stages
The stage numbers.
overallEvents
The overall events.
overallAllocationRatios
The overall 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.