YPmodel (version 1.4)

The Short-Term and Long-Term Hazard Ratio Model for Survival Data

Description

Inference procedures accommodate a flexible range of hazard ratio patterns with a two-sample semi-parametric model. This model contains the proportional hazards model and the proportional odds model as sub-models, and accommodates non-proportional hazards situations to the extreme of having crossing hazards and crossing survivor functions. Overall, this package has four major functions: 1) the parameter estimation, namely short-term and long-term hazard ratio parameters; 2) 95 percent and 90 percent point-wise confidence intervals and simultaneous confidence bands for the hazard ratio function; 3) p-value of the adaptive weighted log-rank test; 4) p-values of two lack-of-fit tests for the model. See the included "read_me_first.pdf" for brief instructions. In this version (1.1), there is no need to sort the data before applying this package.

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Install

install.packages('YPmodel')

Monthly Downloads

124

Version

1.4

License

GPL (>= 3)

Maintainer

Last Published

October 19th, 2020

Functions in YPmodel (1.4)