vcov.coxphw

<p>object of class <code>coxphw</code>.</p>

object

&#8230;

<p>This class of objects is returned by the <code>coxphw</code> function. 
  Objects of this class have methods for the functions <code>summary</code>, <code>print</code>, <code>coef</code>, 
  <code>vcov</code>, <code>plot</code>, and <code>confint</code>.</p>

 utilities

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.

Georg Heinze

coxphw

Weighted Estimation in Cox Regression

Meinhard Ploner

Daniela Dunkler

vcov.coxphw function

Obtain the Variance-Covariance Matrix for a Fitted Model Object of Class <code>coxphw</code> — vcov.coxphw

Obtain the Variance-Covariance Matrix for a Fitted Model Object of Class <code>coxphw</code>

vcov.coxphw: Obtain the Variance-Covariance Matrix for a Fitted Model Object of Class `coxphw`

Description

Usage

Arguments

See Also