R Observatory: Metrics for emIRT version 0.0.15

Balamuta, James Joseph

doi:10.5281/zenodo.21843040

emIRT

0.0.15Package record

EM Algorithms for Estimating Item Response Theory Models

1packages depend

3.6Kdownloads / year

–test coverage

13/13flavors OK

Overview

About

Maintained by Kosuke ImaiCRAN 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. We list this channel from recorded r2u download activity rather than from a live index of the repository, so treat it as last known rather than guaranteed.

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). We list this channel from recorded autoCRAN download activity rather than from a live index of the repository, so treat it as last known rather than guaranteed.

Health

CRAN checks

13OK

CRAN check page ↗

Slowest check: 17.9 min · r-devel-windows-x86_64

Status changes

OK13 OK2026-08-05
NOTE12 OK, 1 NOTE2026-08-01
OK12 OK2026-04-25
NOTE12 OK, 2 NOTE2026-04-22
ERROR11 OK, 2 NOTE, 1 ERROR2026-04-18

Show 1 earlier changeHide 1 earlier change

NOTE12 OK, 2 NOTE2026-03-10

Advisories

none known

How this is measured·How advisories are found

Documentation

In release 0.0.15

READMENoVignettesNoNEWSNoCitation fileNoWebsitenot declared in DESCRIPTION

Help pages: 15
Examples that run: 47%7 run in a plain check · 8 never run
Exported functions with examples: 100%
Documented parameters: 100%
Return-value docs: 100%
Help pages citing references: 100%

How these are measured

Downloads

3.6K

CRAN downloads in the past year

Rank #10,003 · ~10/day · ~302/mo

Releases R versions

Daily download trend is not available in this view yet.

37630 days

1K90 days

3.6K1 year

Compare downloads with other packages →

Also on381 r2u11 autocran177 c2d4u

How downloads are counted

Dependencies

Declared dependencies

5 external dependencies (excludes base and recommended)

Installing emIRT adds 3 packages (3 with compiled code, 5.7 MB of source tarballs). Heaviest: pscl 2.9 MB, Rcpp 1.8 MB, RcppArmadillo 1.0 MB.

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

Imports 1

Depends, Imports or LinkingTo, most downloaded first

lpmec

How these are counted

Code & Tests

Datasets

People & History

People (3)

Kosuke Imai

Author, Maintainer since 0.0.14 (2024)

James Lo

Author

Jonathan Olmsted

Author

Previously maintained by James Lo (0.0.5 to 0.0.13).

Releases (9)

Pick two releases to compare their code metrics.

R
R 4.6.0 released · 2026-04-24
0.0.15Latest
record
2025-09-24 · current release · diff ↗
R
R 4.5.0 released · 2025-04-11
unarchivedReturned to CRAN
2024-07-06
0.0.14
record
2024-07-06 · diff ↗
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
unarchivedReturned to CRAN
2022-03-04
0.0.13
record
2022-03-04 · diff ↗
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
record
2020-02-04 · diff ↗
0.0.9
record
2019-12-13 · diff ↗

Show 10 earlier eventsHide 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
record
2017-02-14 · diff ↗
0.0.7
record
2016-07-29 · diff ↗
R
R 3.3.0 released · 2016-05-03
0.0.6
record
2016-03-22 · diff ↗ ·
added 3 exports
networkIRT, poisIRT, boot_emIRT
R
R 3.2.0 released · 2015-04-16
0.0.5
record
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

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 package has no citation file, so citation() returns this entry built from DESCRIPTION.

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 v2026-10-24. https://doi.org/10.5281/zenodo.21843040

From data release v2026-10-24, which the citation names so these numbers can be found later. More on citing and the projects behind them.

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