R Observatory: Metrics for TAM version 4.3-25

Balamuta, James Joseph

doi:10.5281/zenodo.21843040

TAM

4.3-25

Test Analysis Modules

10packages depend

84Kdownloads / year

–test coverage

13/13checks pass

Overview

About

Maintained by Alexander RobitzschFirst published 2013-07-0163 releasesCRAN page ↗GitHub ↗

Includes marginal maximum likelihood estimation and joint maximum likelihood estimation for unidimensional and multidimensional item response models. The package functionality covers the Rasch model, 2PL model, 3PL model, generalized partial credit model, multi-faceted Rasch model, nominal item response model, structured latent class model, mixture distribution IRT models, and located latent class models. Latent regression models and plausible value imputation are also supported. For details see Adams, Wilson and Wang, 1997 doi:10.1177/0146621697211001, Adams, Wilson and Wu, 1997 doi:10.3102/10769986022001047, Formann, 1982 doi:10.1002/bimj.4710240209, Formann, 1992 doi:10.1080/01621459.1992.10475229.

Install

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

install.packages("TAM", 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("alexanderrobitzsch/TAM")

Development version from alexanderrobitzsch/TAM. 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-tam

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-TAM

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-TAM

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

Health

CRAN checks

13OK

Slowest check: 8.5 min · r-oldrel-windows-x86_64

Code health

None

Tests · ratio 0.00

not tracked

Coverage

100%

Documentation · exports

6

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
OK2026-04-25
12 OK · 0 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE
NOTE2026-04-22
12 OK · 2 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE
ERROR2026-04-18
11 OK · 2 NOTE · 0 WARNING · 1 ERROR · 0 FAILURE

Show 1 earlier snapshots

NOTE2026-03-10
12 OK · 2 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE

Documentation

READMEYes · 128 wordsVignettesNopkgdown siteNoNEWSNoCode of conductNoContributing guideNo

Examples that run: 60%
Documented parameters: 99%
Return-value docs: 95%
References docs: 96%

Downloads

84K

CRAN downloads in the past year

Rank #1,681 · ~230/day · ~7K/mo

Releases R versions

Daily download trend is not available in this view yet.

4K30 days

14.4K90 days

84K1 year

Compare downloads with other packages →

Also on624 r2u19 autocran308 conda_forge84 c2d4u

Repository

GitHub ↗ alexanderrobitzsch/tam

20Stars

11Forks

10Open issues

0Open PRs

49Releases

117Commits

2Contributors

item-response-theory

117 commits · Last activity 2025-08-28 · 0% stars, 30d

Stars over time

2025-07-18 · 172026-07-07 · 20

Repository practices

Upstream repositoryBeta

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

Checks run against github.com/alexanderrobitzsch/tam on 2026-08-16.

Git structural (1)

.gitattributes

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

Dependencies

Declared dependencies

13 external dependencies (excludes base and recommended)

Depends (2)

R >= 2.15.1CDM

Imports (5)

graphicsmethodsRcppstatsutils

LinkingTo (2)

Rcpp RcppArmadillo

Suggests (13)

coda GPArotationgrDeviceslatticelavaanMASSmiceadds mvtnorm plyr psych sfsmiscsplinesWrightMap

Enhances (0)

none

Dependency license breakdown →

Reverse dependencies

10direct

10indirect

immer sirt whomds BIFIEsurvey LAM LSAmitR RMX mfrmr miceadds scaleAlign

Code & Tests

Datasets

People & History

People (3)

Maintainer (1)

Alexander Robitzsch

Author, Maintainer

Authors (3)

Alexander Robitzsch

Author, Maintainer

Thomas Kiefer

Author

Margaret Wu

Author

Listed in earlier versions (1)

Alexander Robitzsch ()

no longer listed · 3.6-45 to 4.2-21

Package Timeline

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

R
R 4.6.0 released · 2026-04-24
4.3-25Latest
2025-08-28 · current release · diff ↗
R
R 4.5.0 released · 2025-04-11
R
R 4.4.0 released · 2024-04-24
4.2-21
2024-02-19 · diff ↗
R
R 4.3.0 released · 2023-04-21
4.1-4
2022-08-28 · diff ↗
4.0-16
2022-05-15 · diff ↗
unarchivedReturned to CRAN
2022-05-15
archivedRemoved from CRAN
2022-05-12
requires archived package 'CDM'
R
R 4.2.0 released · 2022-04-22
3.7-16
2021-06-25 · diff ↗
R
R 4.1.0 released · 2021-05-18
3.6-45
2021-04-22 · diff ↗
3.5-19
2020-05-06 · diff ↗
R
R 4.0.0 released · 2020-04-24

Show 63 earlier events

3.4-26
2020-03-10 · diff ↗
3.3-10
2019-08-23 · diff ↗
3.2-24
2019-07-04 · diff ↗
R
R 3.6.0 released · 2019-04-26
3.1-45
2019-03-18 · diff ↗
3.0-21
2018-12-10 · diff ↗
2.13-15
2018-09-30 · diff ↗
2.12-18
2018-05-25 · diff ↗
2.11-93
2018-05-02 · diff ↗
R
R 3.5.0 released · 2018-04-23
2.10-24
2018-03-29 · diff ↗
2.9-35
2018-02-26 · diff ↗
2.8-21
2017-11-16 · diff ↗
2.7-56
2017-10-19 · diff ↗
2.6-2
2017-08-13 · diff ↗
2.5-14
2017-08-08 · diff ↗
2.4-9
2017-07-01 · diff ↗
2.3-18
2017-06-25 · diff ↗
2.2-49
2017-06-17 · diff ↗
2.1-43
2017-05-11 · diff ↗
R
R 3.4.0 released · 2017-04-21
2.0-37
2017-04-12 · diff ↗
1.99999-31
2017-03-02 · diff ↗
1.99993-0
2017-02-06 · diff ↗
1.99992-0
2017-01-23 · diff ↗
1.995-0
2016-05-31 · diff ↗
R
R 3.3.0 released · 2016-05-03
1.99-6
2016-04-16 · diff ↗
1.17-0
2016-03-12 · diff ↗
1.16-0
2016-02-01 · diff ↗
1.15-0
2015-12-16 · diff ↗
1.14-0
2015-10-15 · diff ↗
1.13-0
2015-08-29 · diff ↗
1.12-0
2015-08-27 · diff ↗
1.11-0
2015-08-11 · diff ↗
1.10-0
2015-07-25 · diff ↗
1.9-0
2015-06-30 · diff ↗
1.8-0
2015-06-27 · diff ↗
1.7-1
2015-06-05 · diff ↗
R
R 3.2.0 released · 2015-04-16
1.6-0
2015-04-03 · diff ↗
1.5-2
2015-02-24 · diff ↗
1.4-1
2015-01-16 · diff ↗
1.3
2015-01-06 · diff ↗
1.2
2014-11-22 · diff ↗
1.1
2014-10-19 · diff ↗
1.0-3.18-1
2014-09-08 · diff ↗
1.0-3
2014-06-27 · diff ↗
1.0-2.1
2014-05-02 · diff ↗
R
R 3.1.0 released · 2014-04-10
1.0-2
2014-04-02 · diff ↗
3.0.3
2014-02-02 · diff ↗
1.0-1
2014-02-02 · diff ↗
1.0-0
2014-01-01 · diff ↗
0.99-7
2013-11-02 · diff ↗
0.9-9
2013-10-13 · diff ↗
0.8-19
2013-10-03 · diff ↗
3.0.2
2013-09-15 · diff ↗
0.7-35
2013-09-15 · diff ↗
0.6-26
2013-08-28 · diff ↗
0.5-21
2013-07-29 · diff ↗
0.04-43
2013-07-01
R
R 3.0.0 released · 2013-04-03

Package metadata

First published: 2013-07-01
Total releases: 63 / 13 yrs
License: GPL (>= 2) OSI
Minimum R: ≥ 2.15.1
Bundled data: 277 KB / 32 files
Download size: 668 KB
Installed size: not tracked yet
With dependencies: not tracked yet

Appears in task views

Missing Data Psychometric Models and Methods

Cite

Cite this package

Run in R for the authors' preferred citation:

citation("TAM")

Format

Robitzsch, A., Kiefer, T., & Wu, M. (2025). TAM: Test Analysis Modules (Version 4.3-25) [Computer software]. https://doi.org/10.32614/CRAN.package.TAM

This is what citation() produces when a package has no citation file of its own. If it prints something else, use that.

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 TAM version 4.3-25 [Data set]. HJJB, LLC. Data release v2026-08-18. https://doi.org/10.5281/zenodo.21843040

From data release v2026-08-18, which the citation names so these numbers can be found later. More on citing and the projects behind them.

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