enrollment              Simulate enrollment times
goldilocks              goldilocks
ppwe                    Cumulative distribution function of the PWE for
                        a vectorized hazard rate parameter
prop_to_haz             Estimate plausible piecewise constant hazard
                        rates from summary summary event proportions
pwe_impute              Impute piecewise exponential time-to-event
                        outcomes
pwe_sim                 Simulate piecewise exponential time-to-event
                        outcomes
randomization           Randomization allocation
sim_trials              Simulate one or more clinical trials subject to
                        known design parameters and treatment effect
summarise_sims          Summarize simulations to get operating
                        characteristics
survival_adapt          Simulate a single adaptive clinical trial with
                        a time-to-event endpoint
