R Observatory: Metrics for CDM version 8.3-14

Balamuta, James Joseph

doi:10.5281/zenodo.21843040

CDM

8.3-14

Cognitive Diagnosis Modeling

12packages depend

82.3Kdownloads / year

–test coverage

13/13checks pass

Overview

About

Maintained by Alexander RobitzschFirst published 2011-10-2760 releasesCRAN page ↗GitHub ↗

Functions for cognitive diagnosis modeling and multidimensional item response modeling for dichotomous and polytomous item responses. This package enables the estimation of the DINA and DINO model (Junker & Sijtsma, 2001, doi:10.1177/01466210122032064), the multiple group (polytomous) GDINA model (de la Torre, 2011, doi:10.1007/s11336-011-9207-7), the multiple choice DINA model (de la Torre, 2009, doi:10.1177/0146621608320523), the general diagnostic model (GDM; von Davier, 2008, doi:10.1348/000711007X193957), the structured latent class model (SLCA; Formann, 1992, doi:10.1080/01621459.1992.10475229) and regularized latent class analysis (Chen, Li, Liu, & Ying, 2017, doi:10.1007/s11336-016-9545-6). See George, Robitzsch, Kiefer, Gross, and Uenlue (2017) doi:10.18637/jss.v074.i02 or Robitzsch and George (2019, doi:10.1007/978-3-030-05584-4_26) for further details on estimation and the package structure. For tutorials on how to use the CDM package see George and Robitzsch (2015, doi:10.20982/tqmp.11.3.p189) as well as Ravand and Robitzsch (2015).

Install

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

install.packages("CDM", 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/CDM")

Development version from alexanderrobitzsch/CDM. 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-cdm

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-CDM

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-CDM

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

Health

CRAN checks

13OK

Slowest check: 6.6 min · r-devel-windows-x86_64

Code health

None

Tests · ratio 0.00

not tracked

Coverage

100%

Documentation · exports

8

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 3 earlier snapshots

NOTE2026-03-30
12 OK · 2 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE
ERROR2026-03-28
11 OK · 2 NOTE · 0 WARNING · 1 ERROR · 0 FAILURE
NOTE2026-03-10
12 OK · 2 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE

Documentation

READMEYes · 134 wordsVignettesNopkgdown siteNoNEWSNoCode of conductNoContributing guideNo

Examples that run: 55%
Documented parameters: 99%
Return-value docs: 98%
References docs: 96%

Downloads

82.3K

CRAN downloads in the past year

Rank #1,704 · ~225/day · ~6.9K/mo

Releases R versions

Daily download trend is not available in this view yet.

4K30 days

14K90 days

82.3K1 year

Compare downloads with other packages →

Also on684 r2u20 autocran287 conda_forge96 c2d4u

Repository

GitHub ↗ alexanderrobitzsch/cdm

23Stars

9Forks

1Open issues

1Open PRs

31Releases

76Commits

2Contributors

item-response-theorycognitive-diagnostic-models

76 commits · Last activity 2025-10-30 · 0% stars, 30d

Stars over time

2024-03-13 · 222026-07-07 · 23

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/cdm on 2026-08-16.

Git structural (1)

.gitattributes

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

Dependencies

Declared dependencies

9 external dependencies (excludes base and recommended)

Depends (2)

R >= 3.1mvtnorm

Imports (7)

graphicsgrDevicesmethodspolycor Rcppstatsutils

LinkingTo (2)

Rcpp RcppArmadillo

Suggests (6)

BIFIEsurveylatticeMASSmiceadds ROI sfsmisc

Enhances (0)

none

Dependency license breakdown →

Reverse dependencies

12direct

8indirect

TAM LAM STARTS TDCM immer mdmb mnlfa sirt GDINA cdcatR dina miceadds

Code & Tests

Datasets

People & History

People (4)

Maintainer (1)

Alexander Robitzsch

Author, Maintainer

Authors (4)

Author, Maintainer

Author

Author

Author · added in 2.15.2

Listed in earlier versions (2)

Ali Uenlue.

no longer listed · 1.0-0 to 2.14.0

George

no longer listed · 8.3-14

Package Timeline

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

R
R 4.6.0 released · 2026-04-24
8.3-14Latest
2025-07-13 · 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
8.2-6
2022-08-25 · diff ↗
8.1-12
2022-05-13 · diff ↗
unarchivedReturned to CRAN
2022-05-13
archivedRemoved from CRAN
2022-05-12
check issues were not corrected in time
8.0-5
2022-05-02 · diff ↗
R
R 4.2.0 released · 2022-04-22
7.6-11
2022-04-11 · diff ↗
R
R 4.1.0 released · 2021-05-18
R
R 4.0.0 released · 2020-04-24
7.5-15
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7.4-19
2019-09-05 · diff ↗

Show 63 earlier events

R
R 3.6.0 released · 2019-04-26
7.3-17
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7.1-20
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R 3.5.0 released · 2018-04-23
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R 3.4.0 released · 2017-04-21
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2016-05-31 · diff ↗
R
R 3.3.0 released · 2016-05-03
4.8-0
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4.7-0
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4.6-0
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R
R 3.2.0 released · 2015-04-16
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4.1
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4.0
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3.4-21
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R
R 3.1.0 released · 2014-04-10
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3.0.3
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2.7-7
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R 3.0.0 released · 2013-04-03
1.1-0
2012-07-29 · diff ↗
2.15.2
2012-07-27 · diff ↗
R
R 2.15.0 released · 2012-03-30
R
R 2.14.0 released · 2011-10-31
2.14.0
2011-10-27 · diff ↗
1.0-0
2011-10-27
R
R 2.13.0 released · 2011-04-13

Package metadata

First published: 2011-10-27
Total releases: 60 / 15 yrs
License: GPL (>= 2) OSI
Minimum R: ≥ 3.1
Bundled data: 746 KB / 40 files
Download size: 1.1 MB
Installed size: not tracked yet
With dependencies: not tracked yet

Appears in task views

Psychometric Models and Methods

Cite

Cite this package

Run in R for the authors' preferred citation:

citation("CDM")

Format

Robitzsch, A., George, A. C., Kiefer, T., & Uenlue, A. (2025). CDM: Cognitive Diagnosis Modeling (Version 8.3-14) [Computer software]. https://doi.org/10.32614/CRAN.package.CDM

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 CDM version 8.3-14 [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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