Parameter Description: Select Populations Function
Optionally, a function can be entered that defines the way of how populations
are selected. This function is allowed to depend on effectVector
with length populations
stage
, conditionalPower
, conditionalCriticalValue
, plannedSubjects/plannedEvents
,
allocationRatioPlanned
, selectedPopulations
, thetaH1
(for means and survival), stDevH1
(for means),
overallEffects
, and for rates additionally: piTreatmentsH1
, piControlH1
, overallRates
, and
overallRatesControl
(see examples).