R Observatory: Metrics for IRTest version 2.2.0

Balamuta, James Joseph

doi:10.5281/zenodo.21843040

IRTest

2.2.0

Parameter Estimation of Item Response Theory with Estimation of Latent Distribution

0packages depend

3.8Kdownloads / year

67.5%test coverage

13/13checks pass

Overview

About

Maintained by Seewoo LiFirst published 2022-09-069 releasesCRAN page ↗GitHub ↗

Item response theory (IRT) parameter estimation using marginal maximum likelihood and expectation-maximization algorithm (Bock \& Aitkin, 1981 doi:10.1007/BF02293801). Within parameter estimation algorithm, several methods for latent distribution estimation are available. Reflecting some features of the true latent distribution, these latent distribution estimation methods can possibly enhance the estimation accuracy and free the normality assumption on the latent distribution.

Install

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

install.packages("IRTest", 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("SeewooLi/IRTest")

Development version from SeewooLi/IRTest. 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-irtest

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-IRTest

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-IRTest

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

Health

CRAN checks

13OK

Slowest check: 12.3 min · r-devel-windows-x86_64

Code health

Yes

Tests · ratio 0.13

67.5%

Coverage · measured lines

100%

Documentation · exports

5

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
OK2026-03-10
14 OK · 0 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE

Documentation

READMEYes · 668 wordsVignettesYes · dynamicpkgdown siteNoNEWSYes · 100% structuredCode of conductNoContributing guideNo

Examples that run: 12%
Documented parameters: 100%
Return-value docs: 100%
References docs: 35%

Downloads

3.8K

CRAN downloads in the past year

Rank #8,277 · ~10/day · ~315/mo

Releases R versions

Daily download trend is not available in this view yet.

18330 days

1.1K90 days

3.8K1 year

Compare downloads with other packages →

Also on108 r2u17 autocran

Repository

GitHub ↗ seewooli/irtest

2Stars

0Forks

1Open issues

0Open PRs

0Releases

330Commits

2Contributors

License GPL-3.0 · 330 commits · Last activity 2026-03-16

Stars over time

2024-09-01 · 22026-07-07 · 2

Repository practices

Upstream repositoryBeta

6 development-tooling and community-health practices detected across 4 families in the upstream repository

Checks run against github.com/seewooli/irtest on 2026-08-16.

Continuous integration (1)

GitHub Actions

CRAN release process (3)

cran-comments.mdrevdep/CRAN-SUBMISSION

Docs source (1)

README.Rmd

Lint, format, editor (1)

RStudio project

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

Dependencies

Declared dependencies

9 external dependencies (excludes base and recommended)

Depends (1)

R >= 3.5

Imports (5)

betafunctions dcurver ggplot2 usethis tidyr

LinkingTo (0)

none

Suggests (4)

knitr rmarkdown testthat gridExtra

Enhances (0)

none

Dependency license breakdown →

Reverse dependencies

0direct

0indirect

Nothing depends on this yet.

Code & Tests

People & History

People (1)

Maintainer (1)

Seewoo Li

Author, Maintainer, Copyright holder

Authors (1)

Seewoo Li

Author, Maintainer, Copyright holder

Copyright holders (1)

Seewoo Li

Author, Maintainer, Copyright holder

Package Timeline

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

R
R 4.6.0 released · 2026-04-24
2.2.0Latest
2026-03-17 · current release · diff ↗
R
R 4.5.0 released · 2025-04-11
2.1.0
2024-10-04 · diff ↗
R
R 4.4.0 released · 2024-04-24
2.0.0
2024-03-22 · diff ↗
1.12.0
2023-10-16 · diff ↗
1.11.0
2023-09-19 · diff ↗
1.7.0
2023-08-17 · diff ↗
1.0.0
2023-07-18 · diff ↗
R
R 4.3.0 released · 2023-04-21
0.1.0
2023-04-02 · diff ↗
0.0.2
2022-09-06
R
R 4.2.0 released · 2022-04-22

Package metadata

First published: 2022-09-06
Total releases: 9 / 4 yrs
License: GPL (>= 3) OSI
Minimum R: ≥ 3.5
Download size: 334 KB
Installed size: not tracked yet
With dependencies: not tracked yet

Cite

Cite this package

Run in R for the authors' preferred citation:

citation("IRTest")

Format

Li, S. (2026). IRTest: Parameter Estimation of Item Response Theory with Estimation of Latent Distribution (Version 2.2.0) [Computer software]. https://doi.org/10.32614/CRAN.package.IRTest

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 IRTest version 2.2.0 [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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