cAIC4

1.1

Conditional Akaike Information Criterion for 'lme4' and 'nlme'

3packages depend

60.6Kdownloads / year

–test coverage

13/13checks pass

Overview

About

Maintained by David RuegamerFirst published 2014-06-0411 releasesCRAN page ↗

Provides functions for the estimation of the conditional Akaike information in generalized mixed-effect models fitted with (g)lmer() from 'lme4', lme() from 'nlme' and gamm() from 'mgcv'. For a manual on how to use 'cAIC4', see Saefken et al. (2021) doi:10.18637/jss.v099.i08.

Install

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

install.packages("cAIC4", 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-caic4

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-cAIC4

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-cAIC4

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

Health

CRAN checks

13OK

Slowest check: 2.4 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

READMENoVignettesNopkgdown siteNoNEWSNoCode of conductNoContributing guideNo

Examples that run: 100%
Documented parameters: 100%
Return-value docs: 100%
References docs: 53%

Downloads

60.6K

CRAN downloads in the past year

Rank #1,894 · ~166/day · ~5K/mo

Releases R versions

Daily download trend is not available in this view yet.

2.8K30 days

13.6K90 days

60.6K1 year

Compare downloads with other packages →

Also on713 r2u29 autocran56 c2d4u

Dependencies

Declared dependencies

4 external dependencies (excludes base and recommended)

Depends (5)

lme4methodsMatrixstats4nlme

Imports (3)

RLRsimmgcvmvtnorm

LinkingTo (0)

none

Suggests (1)

gamm4

Enhances (0)

none

Dependency license breakdown →

Reverse dependencies

3direct

0indirect

fastFMM FBMS parameters

Code & Tests

Datasets

People & History

People (6)

Maintainer (1)

David Ruegamer

Author, Maintainer

Authors (6)

David Ruegamer

Author, Maintainer

Philipp Baumann

Author · added in 0.9

Sonja Greven

Author · added in 1.1

Thomas Kneib

Author

Rene-Marcel Kruse

Author · added in 0.9

Benjamin Saefken

Author

Listed in earlier versions (1)

with contributions from Sonja Greven

no longer listed · 0.1 to 1.0

Package Timeline

11 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
1.1Latest
2025-04-04 · 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
1.0
2021-09-22 · diff ↗
R
R 4.1.0 released · 2021-05-18
R
R 4.0.0 released · 2020-04-24
0.9
2019-12-18 · diff ↗
R
R 3.6.0 released · 2019-04-26
0.8
2019-04-17 · diff ↗
0.7
2019-02-02 · diff ↗
0.6
2018-11-11 · diff ↗
0.5
2018-09-18 · diff ↗
0.4
2018-05-22 · diff ↗

Show 8 earlier events

R
R 3.5.0 released · 2018-04-23
0.3
2018-03-21 · diff ↗
R
R 3.4.0 released · 2017-04-21
R
R 3.3.0 released · 2016-05-03
R
R 3.2.0 released · 2015-04-16
0.2
2014-08-12 · diff ↗
0.1
2014-06-04
R
R 3.1.0 released · 2014-04-10

Package metadata

First published: 2014-06-04
Total releases: 11 / 12 yrs
License: GPL (>= 2) OSI
Bundled data: 36 KB / 2 files
Download size: 88 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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