coxphw v4.0.1

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Weighted Estimation in Cox Regression

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.

Readme

The R package coxphw 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}). 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.

This package is licensed under GPL-2, and available on CRAN: https://cran.r-project.org/package=coxphw.

Functions in coxphw

Name Description
coef.coxphw Extract Model Coefficients for Objects of Class coxphw
PT Pretransformation function
biofeedback Biofeedback Treatment Data
predict.coxphw Predictions for a weigthed Cox model
print.coxphw Print Method for Objects of Class coxphw
fp.power Provides Fractional Polynomials as Accessible Function
gastric Gastric Cancer Data
confint.coxphw Confidence Intervals for Model Parameters
coxphw-package Weighted Estimation in Cox Regression
plot.coxphw Plot Weights of Weighted Estimation in Cox Regression
plot.coxphw.predict Plot the Relative or Log Relative Hazard Versus Values of a Continuous Covariable.
coxphw.control Ancillary arguments for controling coxphw fits
coxphw Weighted Estimation in Cox Regression
vcov.coxphw Obtain the Variance-Covariance Matrix for a Fitted Model Object of Class coxphw
wald Wald-Test for Model Coefficients
concord Compute Generalized Concordance Probabilities for Objects of Class coxphw or coxph
print.coxphw.predict Print Method for Objects of Class predict.coxphw
summary.coxphw Summary Method for Objects of Class coxphw
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Vignettes of coxphw

Name
jss_2018_example_code.Rmd
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Details

Type Package
Date 2018-04-16
NeedsCompilation yes
License GPL-2
VignetteBuilder knitr
Packaged 2018-04-17 12:25:14 UTC; Biometrician
Repository CRAN
Date/Publication 2018-04-17 16:32:16 UTC

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