app_server              Shiny app server
app_ui                  Shiny app UI
bounds                  Bounds
calc_posterior          Function which calculates for k=1, ..., K,
                        Pr(log-HR >= lhr_null | theta.hat.k =
                        lhr_con.k) i.e. the posterior probability the
                        true OS log-hr exceeds the minimum unacceptable
                        OS log-HR given the estimate of the log-hr at
                        analysis k equals lhr_con.k (i.e. the estimate
                        is equal to the stage k 'continuation
                        threshold').
calc_predictive         Title"
meeting_probs           Probabilities of meeting positivity threshold
                        under target HR
run_app                 monitOS app
