Package: IGPFrailty
Type: Package
Title: Inverse Gaussian Process Degradation Models with Frailty
Version: 0.1.0
Authors@R: c(
    person("Shikhar", "Tyagi", email = "shikhar1093tyagi@gmail.com", role = c("aut", "cre"), comment = c(ORCID = "0000-0003-1606-0844")),
    person("Vrijesh", "Tripathi", email = "vrijesh.tripathi@uwi.edu", role = "aut")
  )
Description: Maximum likelihood estimation and reliability inference
        for Inverse Gaussian Process (IGP) degradation models with
        gamma and inverse Gaussian frailty terms, as formulated by
        Morita et al. (2021) <doi:10.1002/qre.2762>. Classical IGP
        degradation models are described in Wasan (1968) and Meeker and
        Escobar (1998, ISBN:978-0471143284). The package provides tools
        for calculating lifetime cumulative distribution functions,
        probability density functions, lifetime quantiles with
        confidence intervals, posterior individual unit frailties, and
        goodness-of-fit diagnostics.
License: GPL (>= 3)
Encoding: UTF-8
LazyData: true
Depends: R (>= 3.5.0)
Imports: stats, graphics, grDevices, utils
Suggests: testthat (>= 3.0.0), knitr, rmarkdown
VignetteBuilder: knitr
RoxygenNote: 7.3.3
NeedsCompilation: no
Packaged: 2026-10-13 11:28:47 UTC; root
Author: Shikhar Tyagi [aut, cre] (ORCID:
        <https://orcid.org/0000-0003-1606-0844>), Vrijesh Tripathi
        [aut]
Maintainer: Shikhar Tyagi <shikhar1093tyagi@gmail.com>
Repository: https://shikhartyagi.r-universe.dev
Date/Publication: 2026-08-25 05:21:06 UTC
RemoteUrl: https://github.com/cran/IGPFrailty
RemoteRef: HEAD
RemoteSha: b69edaba50ff9a549c6e2296f2b56dade6766ece