check.centre

The function controls that the provided cluster variable is a vector, with at least two levels. Indeed, it is not possible to
apply the Time-Dependent Shared Frailty Cox Model with no clusters.

internal

Fits time-dependent shared frailty Cox model (specifically the adapted Paik et al.'s Model) based on the paper "Centre-Effect on Survival After Bone Marrow Transplantation: Application of Time-Dependent Frailty Models", by C.M. Wintrebert, H. Putter, A.H. Zwinderman and J.C. van Houwelingen (2004) <doi:10.1002/bimj.200310051>.

Alessandra Ragni

TimeDepFrail

Time Dependent Shared Frailty Cox Model

Giulia Romani

Chiara Masci

check.centre function

<dl><dt>centre</dt>
<dd>Numerical vector of length equal to the number of individuals in the study, containing the individual grouo/cluster
membership.</dd></dl>

Arguments

Check Correctness for the Cluster Variable — check.centre

<dl>

<dt>centre</dt>
<dd>Numerical vector of length equal to the number of individuals in the study, containing the individual grouo/cluster
membership.</dd>

</dl>

check.centre: Check Correctness for the Cluster Variable

Description

Usage

Value

Arguments