Basic class for stage results.
testStatisticsThe stage-wise test statistics.
pValuesThe stage-wise p-values.
combInverseNormalThe inverse normal test.
combFisherThe Fisher's combination test.
effectSizesThe effect sizes for different designs.
testActionsThe action drawn from test result.
weightsFisherThe weights for Fisher's combination test.
weightsInverseNormalThe weights for inverse normal statistic.
StageResults is the basic class for StageResultsMeans,
StageResultsRates, and StageResultsSurvival.