Early Testing for a Treatment Effect using Surrogate Marker Information

censor.weight | Calculates censoring probability for weighting |

cumsum2 | Helper function |

dataA | Hypothetical Study A data |

dataB | Hypothetical Study B data |

delta.ea.single | Calculates the early treatment effect estimate in Study A |

delta.eb.single | Calculates the early treatment effect estimate in Study B |

delta.estimate | Calculates the treatment effect, the difference in survival... |

design.study | Power and sample size calculation for designing a future... |

early.delta.test | Estimate and test the early treatment effect |

helper.si | Helper function |

int.hazc | Helper function |

int.hazc.plan | Helper function |

Kern.FUN | Calculates kernel matrix |

pred.smooth.surv.new | Calculates the conditional probability of survival to time t |

recover.B | Recover an estimate of the treatment effect at time t in... |

var.delta.eb | Variance estimation |

VTM | Repeats a row. |

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