check.value_post_frailty: Check Non-Negativeness of the Posterior Frailty Estimates

In TimeDepFrail: Time Dependent Shared Frailty Cox Model

Check Non-Negativeness of the Posterior Frailty Estimates

Description

The function controls that all posterior frailty estimates are non-negative. Indeed, by construction the realizations of a gamma distribution are non negative.

Usage

check.value_post_frailty(post_frailty_est, n_centres, n_intervals)

Arguments

post_frailty_est	An S3 class object containing the posterior frailty estimates: \hat{\alpha}_j, \hat{\epsilon}_{jk}, \hat{Z}_{jk}, \forall j,k
n_centres	Number of groups/clusters.
n_intervals	Number of intervals of the time domain

Value

An error if any condition is not satisfied.

TimeDepFrail documentation built on April 11, 2025, 5:41 p.m.