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cff-version: 1.2.0
message: 'To cite package "FrailtyPackPlus" in publications use:'
type: software
license: GPL-3.0-or-later
title: 'FrailtyPackPlus: Shared, Correlated, Additive, and Zero-Inflated Frailty Models'
version: 0.1.0
abstract: Fits and compares shared, correlated, additive, zero-inflated promotion
  cure-rate, and k-out-of-M one-shot device frailty survival models under Bayesian
  Markov chain Monte Carlo (MCMC) and Maximum Likelihood Estimation (MLE) frameworks.
  Supports ten baseline hazard distributions (Weibull, Exponential, Generalized Exponential,
  Exponential Power, Linear Failure Rate, Generalized Log-Logistic, Generalized Weibull,
  Generalized Rayleigh, Weighted Exponential, Extended Weibull) and eight frailty
  distributions (Gamma, Inverse Gaussian, Positive Stable, Compound Poisson, Compound
  Negative Binomial, Generalized Lindley, Weighted Lindley, Mixture of Inverse Gaussians).
  Implements reversed hazard rate (RHR) models for bivariate left-censored survival
  data, additive shared frailty models under random right censoring, and one-shot
  device reliability analysis. Provides goodness-of-fit testing, information criteria
  (AIC, BIC, AICc, HQIC, DIC, EAIC, EBIC, LPML), convergence diagnostics (Geweke,
  Gelman-Rubin, Heidelberger-Welch), Bayes factors, residual analyses, and diagnostic
  visualizations. Methodologies are based on Hanagal and Dabade (2013) <https://doi.org/10.1016/j.spl.2013.07.015>,
  Hanagal and Dabade (2013) <https://doi.org/10.1080/03610918.2012.661909>, Hanagal
  and Dabade (2015) <https://doi.org/10.1080/03610926.2013.804561>, Hanagal and Bhambure
  (2015) <https://doi.org/10.3233/MAS-140308>, Hanagal and Bhambure (2016) <https://doi.org/10.1080/03610926.2014.901380>,
  Hanagal, Pandey, and Ganguly (2017) <https://doi.org/10.1080/03610918.2015.1085559>,
  Hanagal and Pandey (2018) <https://doi.org/10.1080/03610926.2018.1549256>, Hanagal
  (2020) <https://doi.org/10.1080/03610926.2020.1736305>, Tyagi et al. (2021) <https://doi.org/10.1007/s40314-021-01666-5>,
  Pandey, Hanagal, Tyagi, and Gupta (2021) <https://doi.org/10.1142/S0218539321500406>,
  Tyagi, Pandey, and Chesneau (2022) <https://doi.org/10.1007/s42519-021-00241-9>,
  Pandey, Hanagal, and Tyagi (2022) <https://doi.org/10.2478/stattrans-2022-0048>,
  Tyagi, Pandey, and Chesneau (2022) <https://doi.org/10.1007/s13571-022-00278-1>,
  Tyagi, Pandey, Hanagal, and Chesneau (2024) <https://doi.org/10.1080/03610918.2024.2391874>,
  Kiprotich et al. (2025) <https://doi.org/10.1080/02664763.2025.2560510>, Assuncao
  et al. (2026) <https://doi.org/10.1002/bimj.70162>, Chen et al. (1999) <https://doi.org/10.1080/01621459.1999.10474198>,
  Dunn and Smyth (1996) <https://doi.org/10.1080/10618600.1996.10474708>, Ling et
  al. (2021) <https://doi.org/10.3390/math9233032>, Yu, So, and Balakrishnan (2025)
  <https://doi.org/10.1016/B978-0-44-331694-4.00006-2>, Balakrishnan, Ling, and So
  (2021, ISBN:978-1-119-77795-3), and McGilchrist and Aisbett (1991) <https://doi.org/10.2307/2532138>.
authors:
- family-names: Tyagi
  given-names: Shikhar
  email: shikhar1093tyagi@gmail.com
  orcid: https://orcid.org/0000-0003-1606-0844
repository: https://cran.r-universe.dev
commit: 94638b8574366dcd081edc82029ef4d1457d8983
date-released: '2026-10-27'
contact:
- family-names: Tyagi
  given-names: Shikhar
  email: shikhar1093tyagi@gmail.com
  orcid: https://orcid.org/0000-0003-1606-0844