SPCDPower               Calculate the power, sample size for a
                        Sequential Parallel Comparison Design(SPCD)
                        study
SPCDbinary              Analyze a Sequential Parallel Comparison
                        Design(SPCD), study with a binary endpoint
SPCDcontinuous          Analyze continuous data for the Sequential
                        Parallel Comparison Design(SPCD) study
createTestData          Creates a test data set for the example
placeboNonResponder     Example of helper function for determining
                        placebo nonresponse
runGls                  Runs a constrained longitudinal data analysis
                        model for use with 'SPCDcontinuous'
runSlopes               Runs a random slopes model for use with
                        'SPCDcontinuous'
