Weighted Estimation in Cox Regression R package coxphw version 4.0.3 CRAN Task View: Survival (https://CRAN.R-project.org/view=Survival) Implements weighted estimation in Cox regression as proposed by Schemper, Wakounig and Heinze (Statistics in Medicine, 2009, <doi:10.1002/sim.3623>) and as described in Dunkler, Ploner, Schemper and Heinze (Journal of Statistical Software, 2018, <doi:10.18637/jss.v084.i02>). Weighted Cox regression provides unbiased average hazard ratio estimates also in case of non-proportional hazards. Approximated generalized concordance probability an effect size measure for clear-cut decisions can be obtained. The package provides options to estimate time-dependent effects conveniently by including interactions of covariates with arbitrary functions of time, with or without making use of the weighting option. Software Depends: R (>= 3.0.2), survival Suggests: knitr, rmarkdown, testthat Daniela Dunkler <daniela.dunkler@meduniwien.ac.at> Comprehensive R Archive Network (CRAN) Daniela Dunkler [aut, cre], Georg Heinze [aut], Meinhard Ploner [aut] GPL-3 2023-11-28 application/tgz https://CRAN.R-project.org/package=coxphw doi:10.32614/CRAN.package.coxphw