bcfrailphdv - Bivariate Correlated Frailty Models with Varied Variances
Fit and simulate bivariate correlated frailty models with
proportional hazard structure. Frailty distributions, such as
gamma and lognormal models are supported semiparametric
procedures. Frailty variances of the two subjects can be varied
or equal. Details on the models are available in book of Wienke
(2011,ISBN:978-1-4200-7388-1). Bivariate gamma fit is obtained
using the approach given in Kifle et al (2023) <DOI:
10.4310/22-SII738> with modifications. Lognormal fit is based
on the approach by Ripatti and Palmgren (2000)
<doi:10.1111/j.0006-341X.2000.01016.x>. Frailty distributions,
such as gamma, inverse gaussian and power variance frailty
models are supported for parametric approach.
