Package: YPmodel
Type: Package
Title: The Short-Term and Long-Term Hazard Ratio Model for Survival
        Data
Version: 1.4
Date: 2020-10-15
Author: Junlong Sun and Song Yang
Maintainer: Junlong Sun <junlong.sun@gmail.com>
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.
License: GPL (>= 3)
Depends: R (>= 3.5.0)
NeedsCompilation: no
Packaged: 2020-10-18 01:51:03 UTC; junlongsun
Repository: CRAN
Date/Publication: 2020-10-19 23:10:16 UTC
Built: R 4.6.0; ; 2026-04-25 23:12:27 UTC; unix
