R Observatory: Metrics for IGPFrailty version 0.1.0

Balamuta, James Joseph

doi:10.5281/zenodo.21843040

IGPFrailty

0.1.0Package record

Inverse Gaussian Process Degradation Models with Frailty

0packages depend

400downloads / year

83.9%test coverage

7/13flavors OK

Overview

About

Maintained by Shikhar TyagiCRAN page ↗

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.

Install

R (CRAN)Ubuntu (r2u)Fedora (COPR)openSUSE (OBS)

install.packages("IGPFrailty", repos = "https://cloud.r-project.org/")

Installs the current CRAN release. Prebuilt binaries on Windows and macOS.

Release

# enable cranapt (r2u) if it is not already set up, then install
grep -rqs r2u.stat.illinois.edu /etc/apt/sources.list /etc/apt/sources.list.d/ \
  || curl -fsSL https://raw.githubusercontent.com/eddelbuettel/r2u/master/inst/scripts/add_cranapt_noble.sh | sudo bash
sudo apt install -y r-cran-igpfrailty

Fast Ubuntu binaries via r2u (no compilation). The cranapt setup runs once and is skipped when it is already enabled. We list this channel from recorded r2u download activity rather than from a live index of the repository, so treat it as last known rather than guaranteed.

bspm (used by r2u) also needs make: sudo apt install make

# enable the iucar/cran COPR if it is not already present, then install
ls /etc/yum.repos.d/*iucar*cran*.repo >/dev/null 2>&1 \
  || sudo dnf copr enable -y iucar/cran
sudo dnf install -y R-CRAN-IGPFrailty

RPMs from the iucar/cran COPR, rebuilt from CRAN.

For install.packages() integration in R, also: sudo dnf install R-CoprManager

# add the autoCRAN OBS repo (Tumbleweed) if it is missing, then install
zypper -q lr | grep -qi autoCRAN \
  || sudo zypper addrepo https://download.opensuse.org/repositories/devel:/languages:/R:/autoCRAN/openSUSE_Tumbleweed/devel:languages:R:autoCRAN.repo
sudo zypper install -y R-IGPFrailty

RPMs auto-built from CRAN on openSUSE OBS (Tumbleweed). We list this channel from recorded autoCRAN download activity rather than from a live index of the repository, so treat it as last known rather than guaranteed.

Health

CRAN checks

6NOTE7OK

Check messages

NOTEtop-level filesr-devel-linux-x86_64-debian-clang, r-devel-linux-x86_64-debian-gcc, r-devel-linux-x86_64-fedora-clang, r-devel-linux-x86_64-fedora-gcc, r-patched-linux-x86_64, r-release-linux-x86_64

Non-standard file/directory found at top level:
  ‘cran-comments.md’

CRAN check page ↗

Slowest check: 1.4 min · r-oldrel-macos-x86_64

Status changes

NOTE7 OK, 6 NOTENow
NOTE5 OK, 3 NOTE2026-08-26

Advisories

none known

How this is measured·How advisories are found

Documentation

In release 0.1.0

READMENoVignettesYes · 1 · dynamicNEWSNoCitation fileNoWebsitenot declared in DESCRIPTION

Help pages: 9
Examples that run: 100%9 run in a plain check
Exported functions with examples: 100%
Documented parameters: 84%
Return-value docs: 100%
Help pages citing references: 67%

Vignettes (1)

Inverse Gaussian Process Degradation Models with Frailty HTML

How these are measured

Downloads

400

CRAN downloads in the past year

Rank #25,051 · ~1/day · ~33/mo

Releases R versions

Daily download trend is not available in this view yet.

19230 days

40090 days

4001 year

Compare downloads with other packages →

Also on14 r2u4 autocran

How downloads are counted

Dependencies

Declared dependencies

3 external dependencies (excludes base and recommended)

Installing IGPFrailty adds no packages beyond those that come with R.

Depends (1)

R >= 3.5.0

Imports (4)

statsgraphicsgrDevicesutils

LinkingTo (0)

none

Suggests (3)

testthat knitr rmarkdown

Enhances (0)

none

Dependency license breakdown →

Reverse dependencies

0direct

0indirect

Nothing depends on this yet.

How these are counted

Code & Tests

Datasets

People & History

People (2)

Shikhar Tyagi

Author, Maintainer since 0.1.0 (2026)

Vrijesh Tripathi

Author

Releases (1)

0.1.0Latest
record
first seen 2026-08-25 · current release
R
R 4.6.0 released · 2026-04-24

Package metadata

First seen: 2026-08-25
Total releases: 1 / 1 yrs
License: GPL (>= 3) OSI
Minimum R: ≥ 3.5.0
Bundled data: 3.7 KB / 2 files
Download size: 62 KB

Cite

Cite this package

Run in R for the authors' preferred citation:

citation("IGPFrailty")

Format

Tyagi, S., & Tripathi, V. (2026). IGPFrailty: Inverse Gaussian Process Degradation Models with Frailty (Version 0.1.0) [Computer software]. https://doi.org/10.32614/CRAN.package.IGPFrailty

This package has no citation file, so citation() returns this entry built from DESCRIPTION.

Cite the R Observatory

For a number measured here: a download total, a coverage figure, an archival date.

Format

APA

Balamuta, J. J. (2026). R Observatory: Metrics for IGPFrailty version 0.1.0 [Data set]. HJJB, LLC. Data release v2026-10-18. https://doi.org/10.5281/zenodo.21843040

From data release v2026-10-18, which the citation names so these numbers can be found later. More on citing and the projects behind them.

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