cdcatR

1.0.7

Cognitive Diagnostic Computerized Adaptive Testing

0packages depend

3.2Kdownloads / year

–test coverage

12/13checks pass

Overview

About

Maintained by Miguel A. SorrelFirst published 2020-06-138 releasesCRAN page ↗GitHub ↗

Provides a set of functions for conducting cognitive diagnostic computerized adaptive testing applications (Chen, 2009) DOI:10.1007/s11336-009-9123-2). It includes different item selection rules such us the global discrimination index (Kaplan, de la Torre, and Barrada (2015) DOI:10.1177/0146621614554650) and the nonparametric selection method (Chang, Chiu, and Tsai (2019) DOI:10.1177/0146621618813113), as well as several stopping rules. Functions for generating item banks and responses are also provided. To guide item bank calibration, model comparison at the item level can be conducted using the two-step likelihood ratio test statistic by Sorrel, de la Torre, Abad and Olea (2017) DOI:10.1027/1614-2241/a000131.

Install

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

install.packages("cdcatR", 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("miguel-sorrel/cdcatR")

Development version from miguel-sorrel/cdcatR. 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-cdcatr

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-cdcatR

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-cdcatR

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

Health

CRAN checks

1ERROR12OK

Failing flavors

ERROR r-release-macos-arm64

Slowest check: 4.0 min · r-oldrel-macos-x86_64

Code health

None

Tests · ratio 0.00

not tracked

Coverage

100%

Documentation · exports

Dependencies · direct

Check history

ERROR2026-03-10
6 OK · 0 NOTE · 0 WARNING · 8 ERROR · 0 FAILURE

Documentation

READMEYes · 171 wordsVignettesNopkgdown siteNoNEWSYes · 100% structuredCode of conductNoContributing guideNo

Examples that run: 100%
Documented parameters: 83%
Return-value docs: 100%
References docs: 44%

Downloads

3.2K

CRAN downloads in the past year

Rank #13,289 · ~9/day · ~265/mo

Releases R versions

Daily download trend is not available in this view yet.

25530 days

78090 days

3.2K1 year

Compare downloads with other packages →

Also on300 r2u

Repository

GitHub ↗ miguel-sorrel/cdcatr

6Stars

2Forks

1Open issues

0Open PRs

0Releases

86Commits

4Contributors

86 commits · Last activity 2026-02-11 · 0% stars, 30d

Stars over time

2023-12-21 · 52026-07-07 · 6

Repository practices

Upstream repositoryBeta

3 development-tooling and community-health practices detected across 2 families in the upstream repository

Checks run against github.com/miguel-sorrel/cdcatr on 2026-07-30.

CRAN release process (2)

cran-comments.mdCRAN-SUBMISSION

Lint, format, editor (1)

RStudio project

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

Dependencies

Declared dependencies

8 external dependencies (excludes base and recommended)

Depends (1)

R >= 3.5.0

Imports (8)

cdmTools GDINA ggplot2 cowplot foreach doSNOW NPCDstats

LinkingTo (0)

none

Suggests (1)

CDM

Enhances (0)

none

Dependency license breakdown →

Reverse dependencies

0direct

0indirect

Nothing depends on this yet.

Code & Tests

People & History

People (3)

Maintainer (1)

Miguel A. Sorrel

Author, Maintainer, Copyright holder

Authors (3)

Miguel A. Sorrel

Author, Maintainer, Copyright holder

Francisco J. Abad

Author, Copyright holder

Pablo Nájera

Author, Copyright holder

Miguel A. Sorrel

Author, Maintainer, Copyright holder

Francisco J. Abad

Author, Copyright holder

Pablo Nájera

Author, Copyright holder

Package Timeline

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

R
R 4.6.0 released · 2026-04-24
1.0.7Latest
2026-02-11 · 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
1.0.6
2022-05-25 · diff ↗
unarchivedReturned to CRAN
2022-05-25
archivedRemoved from CRAN
2022-04-28
email to the maintainer is undeliverable
R
R 4.2.0 released · 2022-04-22
1.0.5
2022-04-06 · diff ↗
1.0.4
2022-03-31 · diff ↗
1.0.3
2021-07-06 · diff ↗
R
R 4.1.0 released · 2021-05-18
1.0.2
2020-09-09 · diff ↗
1.0.1
2020-07-02 · diff ↗
1.0.0
2020-06-13

Show 1 earlier events

R
R 4.0.0 released · 2020-04-24

Package metadata

First published: 2020-06-13
Total releases: 8 / 6 yrs
License: GPL-3 OSI
Minimum R: ≥ 3.5.0
Bundled data: 68 KB / 3 files
Download size: 109 KB
Installed size: not tracked yet
With dependencies: not tracked yet

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