The frailtyHL package implements the h-likelihood
estimation procedures for frailty models. The package fits
Cox's proportional hazards models with random effects (or
frailties). For the frailty distribution lognormal and gamma
are allowed. The h-likelihood uses the Laplace approximation
when the numerical integration is intractable, giving a
statistically efficient estimation in frailty models.

Frailty Models via Hierarchical Likelihood
Il Do Ha, Maengseok Noh, Jiwoong Kim, Youngjo Lee
Implements the hierarchical likelihood estimation procedures for general frailty models including competing-risk models and joint models.
R (>= 3.2.0), methods, Matrix, numDeriv, survival, cmprsk

Implements the h-likelihood estimation procedures for general frailty models including competing-risk models and joint models.
R (>= 3.4.0), methods, Matrix, survival, cmprsk

R (>= 3.5.0), methods, Matrix, survival, cmprsk

General Semiparametric Shared Frailty Model
c(person("John V. Monaco", role = c("aut", "cre"),
email = "vincent@vmonaco.com"),
person("Malka Gorfine", role = "aut",
email = "gorfinem@post.tau.ac.il"),
person("Li Hsu", role = "aut",
email = "lih@fredhutch.org"))
Simulates and fits semiparametric shared frailty models under a
wide range of frailty distributions using a consistent and
asymptotically-normal estimator. Currently supports: gamma, power variance
function, log-normal, and inverse Gaussian frailty models.
stats, nleqslv, reshape2, ggplot2, numDeriv
John V. Monaco [aut, cre],
Malka Gorfine [aut],
Li Hsu [aut]

c(person("Vinnie Monaco", role = c("aut", "cre"),
email = "contact@vmonaco.com"),
person("Malka Gorfine", role = "aut",
email = "gorfinem@post.tau.ac.il"),
person("Li Hsu", role = "aut",
email = "lih@fredhutch.org"))
Vinnie Monaco [aut, cre],
Malka Gorfine [aut],
Li Hsu [aut]

Frailty models using maximum penalized likelihood estimation
Modified Fortran routines, R code and packaged by Juan R González <jrgonzalez@ico.scs.es>.
Original Fortran routines by Virginie Rondeau <Virginie.Rondeau@isped.u-bordeaux2.fr>
Fit a shared gamma frailty model and Cox proportional hazards model using a Penalized Likelihood
on the hazard function. Left truncated, censored data and strata (max=2) are allowed.