alpha2boundary          Convert cumulative alpha levels to normal
                        critical boundaries
boundary2alpha          Convert normal critical boundaries to
                        cumulative alpha levels.
corrMatGenerator        Correlation matrix generator
gbounds                 Critical boundary in group sequential trials
marginalPwR             Marginal Power Rate
psPwRbhmb               Powers of testing the primary and secondary
                        hypotheses
psPwRtrigger            Powers of testing the primary and secondary
                        hypotheses using trigger strategy
sBoundsPh2              Critical boundaries for the secondary endpoint
                        in the partially hierarchical group sequential
                        design
sErrRphInt2             Type I error rate of the overall null
                        hypothesis using the partial hierarchical
                        design
sPwRholm                Power of testing the secondary hypothesis using
                        Holm
sPwRholmye              Power of testing the secondary hypothesis using
                        Holm-Ye
sPwRnaiveBonf           Power of testing the secondary hypothesis using
                        Bonferroni
sPwRph2                 Power of testing the secondary hypothesis in
                        partially hierarchical design
sPwRtrigger             Power of testing the secondary hypothesis using
                        Trigger strategy
solveAlphaXsampleSize   Sample size calculation
solveAlphaXsampleSizeGA
                        Sample size calculation using Genetic
                        Algorithms
