admiss                  Find the admissible set in a two-period
                        K+M-experimental arm platform design with
                        delayed arms
cor.mat                 Calculate the correlation matrix of the
                        z-statistics for a two-period K+M-experimental
                        arm platform design with delayed arms
fwer_critical           Calculate the critical value and the marginal
                        type-I error rate
one_design              Calculate other design parameters of a
                        two-period K+M-experimental arm platform design
                        given sample sizes
one_stage_multiarm      Calculate the sample sizes and other design
                        parameters for an one-stage K-experimental arm
                        trial using the root-K rule for the allocation
                        ratio, controlling for FWER or PWER
platform_design         Design an optimal two-period multiarm platform
                        trial with new experimental arms added during
                        the trial, controlling for FWER or PWER
platform_design2        A faster version of platform_design()
