AICcmodavg

2.3-4

Model Selection and Multimodel Inference Based on (Q)AIC(c)

14packages depend

124.4Kdownloads / year

–test coverage

13/13checks pass

Overview

About

Maintained by Marc J. MazerolleFirst published 2009-09-0366 releasesCRAN page ↗

Functions to implement model selection and multimodel inference based on Akaike's information criterion (AIC) and the second-order AIC (AICc), as well as their quasi-likelihood counterparts (QAIC, QAICc) from various model object classes. The package implements classic model averaging for a given parameter of interest or predicted values, as well as a shrinkage version of model averaging parameter estimates or effect sizes. The package includes diagnostics and goodness-of-fit statistics for certain model types including those of 'unmarkedFit' classes estimating demographic parameters after accounting for imperfect detection probabilities. Some functions also allow the creation of model selection tables for Bayesian models of the 'bugs', 'rjags', and 'jagsUI' classes. Functions also implement model selection using BIC. Objects following model selection and multimodel inference can be formatted to LaTeX using 'xtable' methods included in the package.

Install

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

install.packages("AICcmodavg", 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-aiccmodavg

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-AICcmodavg

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-AICcmodavg

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

Health

CRAN checks

13OK

Slowest check: 12.0 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

OK2026-03-13
14 OK · 0 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE
ERROR2026-03-12
13 OK · 0 NOTE · 0 WARNING · 1 ERROR · 0 FAILURE
OK2026-03-10
14 OK · 0 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE

Documentation

READMENoVignettesYes · dynamicpkgdown siteNoNEWSNoCode of conductNoContributing guideNo

Examples that run: 97%
Documented parameters: 100%
Return-value docs: 100%
References docs: 66%

Downloads

124.4K

CRAN downloads in the past year

Rank #1,313 · ~341/day · ~10.4K/mo

Releases R versions

Daily download trend is not available in this view yet.

6.5K30 days

26K90 days

124.4K1 year

Compare downloads with other packages →

Also on414 r2u63 autocran2.1K conda_forge44 c2d4u

Dependencies

Declared dependencies

17 external dependencies (excludes base and recommended)

Depends (1)

R >= 3.2.0

Imports (12)

methodsstatsgraphicslatticeMASSMatrixnlmestats4survivalunmarked VGAM xtable

LinkingTo (0)

none

Suggests (15)

betareg coxme fitdistrplus glmmTMB lavaan lme4 maxlikennetordinal pscl R2jags R2OpenBUGS R2WinBUGS jagsUI lmerTest

Enhances (0)

none

Dependency license breakdown →

Reverse dependencies

14direct

0indirect

AdIsMF citsr enmSdmX longit multiScaleR multipleITScontrol sars soiltestcorr temperatureresponse AMModels ARDL bbmle ggtrendline rmcorr

Code & Tests

Datasets

People & History

People (1)

Maintainer (1)

Marc J. Mazerolle

Author, Maintainer · added in 2.2-0

Authors (1)

Marc J. Mazerolle

Author, Maintainer · added in 2.2-0

Listed in earlier versions (4)

Marc J. Mazerolle. Special thanks to T. Ergon for the original idea of storing candidate models in a list.

no longer listed · 2.10.0 to 1.35

Marc J. Mazerolle.

no longer listed · 2.00 to 2.1-1

portions of code contributed by Dan Linden.

no longer listed · 2.2-0 to 2.2-2

Mazerolle

no longer listed · 2.3-4

Package Timeline

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

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R 4.5.0 released · 2025-04-11
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R 2.9.0 released · 2009-04-17
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R 2.8.0 released · 2008-10-20

Package metadata

First published: 2009-09-03
Total releases: 66 / 17 yrs
License: GPL (>= 2) OSI
Minimum R: ≥ 3.2.0
Bundled data: 33 KB / 15 files
Download size: 796 KB
Installed size: not tracked yet
With dependencies: not tracked yet

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