power.2stage            Power calculation of adaptive 2-stage BE
                        studies with 2x2 crossover design
power.2stage.GS         Power calculation for non-adaptive group
                        sequential (2-stage) BE studies
power.2stage.KM         Power calculation of adaptive 2-stage BE
                        studies (2x2 crossover) (variant of
                        power.2stage to obtain the results of Karalis /
                        Macheras)
power.2stage.fC         Power calculation of adaptive 2-stage BE
                        studies (2x2 crossover) with a futility
                        criterion for the point estimate of T/R or its
                        90%CI
power.2stage.p          Power calculation of adaptive 2-stage BE
                        studies with 2-group parallel design
power.2stage.ssr        Power of 2-stage BE studies with 2x2 crossover
                        design with interim sample size re-estimation
