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.

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.

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 No Results!