R Observatory: Metrics for emIRT version 0.0.15

Balamuta, James Joseph

doi:10.5281/zenodo.21843040

emIRT

0.0.15

EM Algorithms for Estimating Item Response Theory Models

1packages depend

3.8Kdownloads / year

–test coverage

13/13checks pass

Overview

About

Maintained by Kosuke ImaiFirst published 2015-03-019 releasesCRAN page ↗

Various Expectation-Maximization (EM) algorithms are implemented for item response theory (IRT) models. The package includes IRT models for binary and ordinal responses, along with dynamic and hierarchical IRT models with binary responses. The latter two models are fitted using variational EM. The package also includes variational network and text scaling models. The algorithms are described in Imai, Lo, and Olmsted (2016) DOI:10.1017/S000305541600037X.

Install

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

install.packages("emIRT", repos = "https://cloud.r-project.org/")

Installs the current CRAN release. Prebuilt binaries on Windows and macOS.

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-emirt

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-emIRT

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-emIRT

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

Health

CRAN checks

13OK

Slowest check: 18.0 min · r-devel-windows-x86_64

Code health

None

Tests · ratio 0.00

not tracked

Coverage

100%

Documentation · exports

2

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

READMENoVignettesNopkgdown siteNoNEWSNoCode of conductNoContributing guideNo

Examples that run: 60%
Documented parameters: 100%
Return-value docs: 100%
References docs: 100%

Downloads

3.8K

CRAN downloads in the past year

Rank #10,309 · ~10/day · ~313/mo

Releases R versions

Daily download trend is not available in this view yet.

22330 days

93490 days

3.8K1 year

Compare downloads with other packages →

Also on423 r2u17 autocran79 c2d4u

Dependencies

Declared dependencies

5 external dependencies (excludes base and recommended)

Depends (3)

R >= 2.10pscl Rcpp

Imports (0)

none

LinkingTo (2)

Rcpp RcppArmadillo

Suggests (1)

MCMCpack

Enhances (0)

none

Dependency license breakdown →

Reverse dependencies

1direct

0indirect

lpmec

Code & Tests

People & History

People (3)

Maintainer (1)

Kosuke Imai

Author, Maintainer

Authors (3)

Kosuke Imai

Author, Maintainer

James Lo

Author

Jonathan Olmsted

Author

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
0.0.15Latest
2025-09-24 · current release · diff ↗
R
R 4.5.0 released · 2025-04-11
0.0.14
2024-07-06 · diff ↗
unarchivedReturned to CRAN
2024-07-06
R
R 4.4.0 released · 2024-04-24
archivedRemoved from CRAN
2024-01-12
email to the maintainer is undeliverable
R
R 4.3.0 released · 2023-04-21
R
R 4.2.0 released · 2022-04-22
0.0.13
2022-03-04 · diff ↗
unarchivedReturned to CRAN
2022-03-04
archivedRemoved from CRAN
2022-01-28
check problems were not corrected in time
R
R 4.1.0 released · 2021-05-18
R
R 4.0.0 released · 2020-04-24
0.0.11
2020-02-04 · diff ↗
0.0.9
2019-12-13 · diff ↗

Show 10 earlier events

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
0.0.8
2017-02-14 · diff ↗
0.0.7
2016-07-29 · diff ↗
R
R 3.3.0 released · 2016-05-03
0.0.6
2016-03-22 · diff ↗
R
R 3.2.0 released · 2015-04-16
0.0.5
2015-03-01
R
R 3.1.0 released · 2014-04-10

Package metadata

First published: 2015-03-01
Total releases: 9 / 11 yrs
License: GPL (>= 3) OSI
Minimum R: ≥ 2.10
Bundled data: 2.0 MB / 6 files
Download size: 2.1 MB
Installed size: not tracked yet
With dependencies: not tracked yet

Cite

Cite this package

Run in R for the authors' preferred citation:

citation("emIRT")

Format

Imai, K., Lo, J., & Olmsted, J. (2025). emIRT: EM Algorithms for Estimating Item Response Theory Models (Version 0.0.15) [Computer software]. https://doi.org/10.32614/CRAN.package.emIRT

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 emIRT version 0.0.15 [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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