Power in a Group Sequential Design

Ch1-PwrGSD | Calculate Power in a Group Sequential Design |

Ch2-LanDemets | The Lan-Demets method of Boundary Construction |

Ch3-ObrienFleming | The O'Brien-Fleming Alpha Spending Function |

Ch4-Pow | The Wang-Tsiatis Power Alpha Spending Function |

Ch5-Pocock | The Pocock Alpha Spending Function |

Ch6-SC | The Stochastic Curtailment method of Boundary Construction |

Ch7-Haybittle | The Haybittle method of Boundary Construction |

Ch8-cpd.PwrGSD | Create a skeleton compound PwrGSD object |

Ch9-Power | Extract the Power results |

ChA1-as.boundaries | Convert a "PwrGSD" object to a "boundaries" object |

ChA2-Elements | Create a subset of a "cpd.PwrGSD" object |

ChA3-plot.cpd.PwrGSD | Plot Method for cpd.PwrGSD objects |

ChA4-GrpSeqBnds | Computes efficacy and futility boundaries |

ChA5-CondPower | Conditional type I and type II error probabilities given... |

ChA6-SimGSB | Verifies the results of "GrpSeqBnds" via simulation |

ChA7-wtdlogrank | Weighted log-rank test |

ChA8-IntSurvDiff | Weighted Integrated Survival function test |

ChA9-agghaz | Aggregated Hazard |

ChB1-mysurvfit | My Survfit |

ChB2-mystack | Stack a dataset |

ChB3-CDFOR2LRR | Convert CDF Odds Ratio to Logged Relative Risks |

ChB4-CY2TOShaz | Calender year rates to Study Year Rates |

ChB5-CRRtoRR | Cumulative-risk ratios to risk ratios |

ChB6-RCM2RR | Relative cumulative mortality to Relative Risk |

ChB7-RR2RCM | Relative risk to Relative Cumulative Mortality |

ChB8-lookup | Lookup values for a piecewise constant function |

ChB9-lung | Mayo Clinic Lung Cancer Data |

ChC1-DX | A utility function for forming differences |

ChC2-pste | The paste operator |

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