R Observatory: Metrics for gremlin version 1.1.0

Balamuta, James Joseph

gremlin

1.1.0

Mixed-Effects REML Incorporating Generalized Inverses

0packages depend

6.8Kdownloads / year

–test coverage

13/13checks pass

Overview

About

Maintained by Matthew WolakFirst published 2018-10-304 releasesCRAN page ↗GitHub ↗

Fit linear mixed-effects models using restricted (or residual) maximum likelihood (REML) and with generalized inverse matrices to specify covariance structures for random effects. In particular, the package is suited to fit quantitative genetic mixed models, often referred to as 'animal models'. Implements the average information algorithm as the main tool to maximize the restricted log-likelihood, but with other algorithms available.

Install

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

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

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

if (!requireNamespace("pak", quietly = TRUE))
  install.packages("pak", repos = "https://cloud.r-project.org/")
pak::pak("matthewwolak/gremlin")

Development version from matthewwolak/gremlin. Installs pak first if it is not already available.

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-gremlin

Fast Ubuntu binaries via r2u (no compilation). The cranapt setup runs once and is skipped when it is already enabled.

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-gremlin

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-gremlin

RPMs auto-built from CRAN on openSUSE OBS (Tumbleweed).

Health

CRAN checks

13OK

Slowest check: 2.3 min · r-oldrel-windows-x86_64

Code health

None

Tests · ratio 0.00

not tracked

Coverage

100%

Documentation · exports

3

Dependencies · direct

Check history

OK2026-08-05
13 OK · 0 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE
NOTE2026-08-01
12 OK · 1 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE
OK2026-03-10
14 OK · 0 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE

Documentation

READMEYes · 165 wordsVignettesNopkgdown siteNoNEWSYes · 100% structuredCode of conductNoContributing guideNo

Examples that run: 93%
Documented parameters: 89%
Return-value docs: 100%
References docs: 26%

Downloads

6.8K

CRAN downloads in the past year

Rank #6,297 · ~19/day · ~563/mo

Releases R versions

Daily download trend is not available in this view yet.

17730 days

1.4K90 days

6.8K1 year

Compare downloads with other packages →

Also on386 r2u6 autocran

Repository

GitHub ↗ matthewwolak/gremlin

6Stars

1Forks

1Open issues

0Open PRs

4Releases

678Commits

1Contributors

maximum-likelihoodmixed-modelsaverage-informationlinear-mixed-models

License GPL-3.0 · 678 commits · Last activity 2024-11-07 · 0% stars, 30d

Stars over time

2022-10-11 · 52026-07-07 · 6

Repository practices

Upstream repositoryBeta

1 development-tooling and community-health practice detected across 1 family in the upstream repository

Checks run against github.com/matthewwolak/gremlin on 2026-08-03.

CRAN release process (1)

cran-comments.md

How this is detected·Detection ruleset v1 (2026-07-18)

Dependencies

Declared dependencies

0 external dependencies (excludes base and recommended)

Depends (1)

Matrix

Imports (2)

methodsnlme

LinkingTo (0)

none

Suggests (0)

none

Enhances (0)

none

Dependency license breakdown →

Reverse dependencies

0direct

0indirect

Nothing depends on this yet.

Code & Tests

Datasets

People & History

People (1)

Maintainer (1)

Matthew Wolak

Maintainer, Author

Authors (1)

Matthew Wolak

Maintainer, Author

Package Timeline

4 releases. Pick two to compare their code metrics. R releases are shown for context.

R
R 4.6.0 released · 2026-04-24
R
R 4.5.0 released · 2025-04-11
1.1.0Latest
2024-11-04 · current release · diff ↗
R
R 4.4.0 released · 2024-04-24
R
R 4.3.0 released · 2023-04-21
R
R 4.2.0 released · 2022-04-22
R
R 4.1.0 released · 2021-05-18
1.0.1
2020-06-25 · diff ↗
R
R 4.0.0 released · 2020-04-24
R
R 3.6.0 released · 2019-04-26
0.1.0.1
2019-04-09 · diff ↗
unarchivedReturned to CRAN
2019-04-09
archivedRemoved from CRAN
2019-04-02
check problems were not corrected despite reminders
0.1.0.0
2018-10-30
R
R 3.5.0 released · 2018-04-23

Package metadata

First published: 2018-10-30
Total releases: 4 / 8 yrs
License: GPL-3 | file LICENSE OSI
Bundled data: 0.3 KB / 1 file
Download size: 143 KB
Installed size: not tracked yet
With dependencies: not tracked yet

Cite

Cite this package

Start here. This is the citation for the package itself.

citation("gremlin")

CRAN DOI

https://doi.org/10.32614/CRAN.package.gremlin

BibTeX, derived from DESCRIPTION

@Manual{gremlin,
  title  = {gremlin: Mixed-Effects REML Incorporating Generalized Inverses},
  author = {Wolak, Matthew},
  year   = {2024},
  note   = {R package version 1.1.0},
  doi    = {10.32614/CRAN.package.gremlin},
  url    = {https://CRAN.R-project.org/package=gremlin}
}

Derived from the package DESCRIPTION, not from a citation file the authors wrote. If they publish one later, prefer it.

This is the citation for the package. It is not a citation for the R Observatory.

Cite this page

Use this when the claim is about a measurement on this page.

BibTeX

@misc{robservatorygremlin,
  author    = {Balamuta, James Joseph},
  title     = {{R} {Observatory}: Metrics for {gremlin} version 1.1.0},
  year      = {2026},
  publisher = {HJJB, LLC},
  url       = {https://r-observatory.thecoatlessprofessor.com/packages/gremlin},
  note      = {Data set. Data release v2026-08-05}
}

APA

Balamuta, J. J. (2026). R Observatory: Metrics for gremlin version 1.1.0 [Data set]. HJJB, LLC. Data release v2026-08-05. https://r-observatory.thecoatlessprofessor.com/packages/gremlin

RIS

TY  - DATA
AU  - Balamuta, James Joseph
TI  - R Observatory: Metrics for gremlin version 1.1.0
PY  - 2026
PB  - HJJB, LLC
N1  - Data release v2026-08-05
UR  - https://r-observatory.thecoatlessprofessor.com/packages/gremlin
ER  -

In prose

These package metrics were obtained from the R Observatory (Balamuta, 2026), data release v2026-08-05, https://r-observatory.thecoatlessprofessor.com/packages/gremlin.

Bound to data release v2026-08-05, which is what makes the numbers on this page reproducible. See how to cite.

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