check.centre {TimeDepFrail}R Documentation

Check correctness for the cluster variable

Description

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.

Usage

check.centre(centre)

Arguments

centre

Numerical vector of length equal to the number of individuals in the study, containing the individual grouo/cluster membership.

Value

An error if any condition is not satisfied


[Package TimeDepFrail version 0.0.0.9 Index]