Package: nphPower
Title: Sample Size Calculation under Non-Proportional Hazards
Version: 1.0.0
Authors@R: 
    person(given = "Huan",
           family = "Cheng",
           role = c("aut", "cre"),
           email = "hcheng1118@hotmail.com",
           comment = c(ORCID = "0000-0002-2552-7656"))
Description: Performs combination tests and sample size calculation for 
   fixed design with survival endpoints using combination tests under either
   proportional hazards or non-proportional hazards. The combination tests 
   include maximum weighted log-rank test and projection test. The sample 
   size calculation procedure is very flexible, allowing for user-defined
   hazard ratio function and considering various trial conditions like 
   staggered entry, drop-out etc. Trial simulation function is also provided 
   to facilitate the empirical power calculation. The references for 
   projection test and maximum weighted logrank test include Brendel et al. (2014)
   <doi:10.1111/sjos.12059> and Cheng and He (2021) <arXiv:2110.03833>. The 
   references for sample size calculation under proportional hazard include
   Schoenfeld (1981) <doi:10.1093/biomet/68.1.316> and Freedman (1982) <doi:10.1002/sim.4780010204>.
   The references for calculation under non-proportional hazards include 
   Lakatos (1988) <doi:10.2307/2531910> and Cheng and He (2021) (under review).
License: GPL (>= 2)
Encoding: UTF-8
LazyData: true
RoxygenNote: 7.1.1
Imports: survival, stats, mvtnorm, MASS, zoo
Suggests: rmarkdown, knitr
URL: https://github.com/hcheng99/nphPower
Depends: R (>= 2.10)
NeedsCompilation: no
Packaged: 2021-12-01 03:04:02 UTC; hcheng
Author: Huan Cheng [aut, cre] (<https://orcid.org/0000-0002-2552-7656>)
Maintainer: Huan Cheng <hcheng1118@hotmail.com>
Repository: CRAN
Date/Publication: 2021-12-01 11:20:06 UTC
