R Observatory: Metrics for catIrt version 0.5.1

Balamuta, James Joseph

doi:10.5281/zenodo.21843040

catIrt

0.5.1

Simulate IRT-Based Computerized Adaptive Tests

1packages depend

3.3Kdownloads / year

–test coverage

13/13checks pass

Overview

About

Maintained by Steven NydickFirst published 2012-08-017 releasesCRAN page ↗GitHub ↗

Functions designed to simulate data that conform to basic unidimensional IRT models (for now 3-parameter binary response models and graded response models) along with Post-Hoc CAT simulations of those models given various item selection methods, ability estimation methods, and termination criteria. See Wainer (2000) doi:10.4324/9781410605931, van der Linden & Pashley (2010) doi:10.1007/978-0-387-85461-8_1, and Eggen (1999) doi:10.1177/01466219922031365 for more details.

Install

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

install.packages("catIrt", 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("swnydick/catIrt")

Development version from swnydick/catIrt. 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-catirt

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-catIrt

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-catIrt

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

Health

CRAN checks

13OK

Slowest check: 2.2 min · r-devel-windows-x86_64

Code health

None

Tests · ratio 0.00

not tracked

Coverage

100%

Documentation · exports

1

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
OK2026-03-30
14 OK · 0 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE
ERROR2026-03-28
13 OK · 0 NOTE · 0 WARNING · 1 ERROR · 0 FAILURE
OK2026-03-10
14 OK · 0 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE

Documentation

READMEYes · 105 wordsVignettesNopkgdown siteNoNEWSYes · 100% structuredCode of conductNoContributing guideNo

Examples that run: 83%
Documented parameters: 81%
Return-value docs: 100%
References docs: 86%

Downloads

3.3K

CRAN downloads in the past year

Rank #12,559 · ~9/day · ~275/mo

Releases R versions

Daily download trend is not available in this view yet.

22530 days

79590 days

3.3K1 year

Compare downloads with other packages →

Also on399 r2u16 autocran

Repository

GitHub ↗ swnydick/catirt

4Stars

3Forks

0Open issues

0Open PRs

0Releases

26Commits

1Contributors

26 commits · Last activity 2025-07-07

Stars over time

2024-07-23 · 42026-07-07 · 4

Repository practices

Upstream repositoryBeta

Checks run against github.com/swnydick/catirt on 2026-08-16.

No development-tooling practices detected in the upstream repository.

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

Dependencies

Declared dependencies

4 external dependencies (excludes base and recommended)

Depends (2)

R >= 2.11.0numDeriv

Imports (0)

none

LinkingTo (0)

none

Suggests (3)

irtoys ltm catR

Enhances (0)

none

Dependency license breakdown →

Reverse dependencies

1direct

0indirect

catSurv

Code & Tests

People & History

People (1)

Maintainer (1)

Steven Nydick

Maintainer, Author · added in 0.5.1

Authors (1)

Steven Nydick

Maintainer, Author · added in 0.5.1

Listed in earlier versions (1)

Steven W. Nydick

no longer listed · 0.2-1 to 0.5-0

Package Timeline

7 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
R
R 4.4.0 released · 2024-04-24
R
R 4.3.0 released · 2023-04-21
0.5.1Latest
2022-05-26 · current release · diff ↗
R
R 4.2.0 released · 2022-04-22
R
R 4.1.0 released · 2021-05-18
R
R 4.0.0 released · 2020-04-24
R
R 3.6.0 released · 2019-04-26
R
R 3.5.0 released · 2018-04-23
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
0.5-0
2014-10-05 · diff ↗
0.4-2
2014-06-21 · diff ↗
R
R 3.1.0 released · 2014-04-10

Show 6 earlier events

0.4-1
2013-05-31 · diff ↗
0.4-0
2013-04-25 · diff ↗
R
R 3.0.0 released · 2013-04-03
0.3-0
2012-09-15 · diff ↗
0.2-1
2012-08-01
R
R 2.15.0 released · 2012-03-30

Package metadata

First published: 2012-08-01
Total releases: 7 / 14 yrs
License: GPL (>= 2) OSI
Minimum R: ≥ 2.11.0
Download size: 80 KB
Installed size: not tracked yet
With dependencies: not tracked yet

Cite

Cite this package

Run in R for the authors' preferred citation:

citation("catIrt")

Format

Nydick, S. (2022). catIrt: Simulate IRT-Based Computerized Adaptive Tests (Version 0.5.1) [Computer software]. https://doi.org/10.32614/CRAN.package.catIrt

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 catIrt version 0.5.1 [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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