finalData               Final enrollment and event data after achieving
                        the target number of events
fitDropout              Fit time-to-dropout model
fitEnrollment           Fit enrollment model
fitEvent                Fit time-to-event model
getPrediction           Enrollment and event prediction
interimData1            Interim enrollment and event data before
                        enrollment completion
interimData2            Interim enrollment and event data after
                        enrollment completion
predictEnrollment       Predict enrollment
predictEvent            Predict event
pwexpreg                Piecewise exponential regression
runShinyApp             Run Shiny app
summarizeObserved       Summarize observed data
