asPowerFamily {GroupSeq}R Documentation

approximates alpha-function Power Family

Description

This alpha spending function approximates alpha-function Power Family.

Usage

asPowerFamily(alpha, tk, OneOrTwoSidedBounds, delta)

Arguments

alpha is the desired overall size.
tk is current point of time
OneOrTwoSidedBounds One-('OneOrTwoSidedBounds'==1) or Two-sided bounds('OneOrTwoSidedBounds'==2) are used
delta is the parameter for the Power Family

Value

see description

Note

This function is meant to be called in context of using groupseq

Author(s)

Roman Pahl

See Also

groupseq, alphaByUseFunction, asPowerFamily asHSdeCani, asPocock

Examples

##simple example with result: [1] 0.2639016
asPowerFamily(0.05,4,2,1.7)

[Package GroupSeq version 1.0 Index]