gamm4

0.2-7

Generalized Additive Mixed Models using 'mgcv' and 'lme4'

22packages depend

136.8Kdownloads / year

–test coverage

13/13checks pass

Overview

About

Maintained by Simon WoodFirst published 2009-09-0818 releasesCRAN page ↗

Estimate generalized additive mixed models via a version of function gamm() from 'mgcv', using 'lme4' for estimation.

Install

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

install.packages("gamm4", 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-gamm4

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

# 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-gamm4

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

Health

CRAN checks

13OK

Slowest check: 2.1 min · r-devel-linux-x86_64-fedora-clang

Code health

None

Tests · ratio 0.00

not tracked

Coverage

100%

Documentation · exports

Dependencies · direct

Check history

OK2026-03-10
14 OK · 0 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE

Documentation

READMEYes · 18 wordsVignettesNopkgdown siteNoNEWSNoCode of conductNoContributing guideNo

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

Downloads

136.8K

CRAN downloads in the past year

Rank #1,088 · ~375/day · ~11.4K/mo

Releases R versions

Daily download trend is not available in this view yet.

11.8K30 days

38K90 days

136.8K1 year

Compare downloads with other packages →

Also on981 r2u11 autocran1.9K conda_forge73 c2d4u

Dependencies

Declared dependencies

1 external dependency (excludes base and recommended)

Depends (5)

R >= 4.4.0methodsMatrixlme4mgcv

Imports (0)

none

LinkingTo (0)

none

Suggests (0)

none

Enhances (0)

none

Dependency license breakdown →

Reverse dependencies

22direct

20indirect

MJMbamlss crosslag fPASS mgcViz projpred pwSEM refund registr MuMIn bayestestR buildmer cAIC4 datawizard galamm ggeffects gratia insight lme4 modelbased performance rstanarm tramME

Code & Tests

People & History

People (2)

Maintainer (1)

Simon Wood

Author, Maintainer

Authors (2)

Simon Wood

Author, Maintainer

Fabian Scheipl

Author · added in 0.2-1

Package Timeline

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

R
R 4.6.0 released · 2026-04-24
0.2-7Latest
2025-04-22 · current release · diff ↗
R
R 4.5.0 released · 2025-04-11
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
R
R 4.0.0 released · 2020-04-24
0.2-6
2020-04-03 · diff ↗
R
R 3.6.0 released · 2019-04-26
R
R 3.5.0 released · 2018-04-23
0.2-5
2017-07-25 · diff ↗
R
R 3.4.0 released · 2017-04-21
0.2-4
2016-09-17 · diff ↗
R
R 3.3.0 released · 2016-05-03
R
R 3.2.0 released · 2015-04-16

Show 23 earlier events

0.2-3
2014-07-21 · diff ↗
R
R 3.1.0 released · 2014-04-10
0.2-2
2013-09-25 · diff ↗
0.2-1
2013-07-24 · diff ↗
0.2-0
2013-07-19 · diff ↗
R
R 3.0.0 released · 2013-04-03
0.1-6
2012-07-20 · diff ↗
R
R 2.15.0 released · 2012-03-30
R
R 2.14.0 released · 2011-10-31
0.1-5
2011-10-10 · diff ↗
0.1-4
2011-10-08 · diff ↗
0.1-3
2011-07-23 · diff ↗
R
R 2.13.0 released · 2011-04-13
0.1-2
2011-03-02 · diff ↗
0.1-0
2010-11-03 · diff ↗
R
R 2.12.0 released · 2010-10-15
0.0-4
2010-04-28 · diff ↗
0.0-3
2010-04-27 · diff ↗
R
R 2.11.0 released · 2010-04-22
0.0-2
2009-11-18 · diff ↗
R
R 2.10.0 released · 2009-10-26
0.0-1
2009-09-08
R
R 2.9.0 released · 2009-04-17

Package metadata

First published: 2009-09-08
Total releases: 18 / 17 yrs
License: GPL (>= 2) OSI
Minimum R: ≥ 4.4.0
Download size: 15 KB
Installed size: not tracked yet
With dependencies: not tracked yet

Appears in task views

Mixed, Multilevel, and Hierarchical Models in R

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