R Observatory: Metrics for mirt version 1.48

Balamuta, James Joseph

doi:10.5281/zenodo.21843040

mirt

1.48Package record

Multidimensional Item Response Theory

44packages dependsuggested by 27

134.1Kdownloads / year

0.0%test coverage

13/13flavors OK

Overview

About

Maintained by Phil ChalmersCRAN page ↗GitHub ↗Website ↗Issues ↗

Analysis of discrete response data using unidimensional and multidimensional item analysis models under the Item Response Theory paradigm (Chalmers (2012) doi:10.18637/jss.v048.i06). Exploratory and confirmatory item factor analysis models are estimated with quadrature (EM) or stochastic (MHRM) methods. Confirmatory bi-factor and two-tier models are available for modeling item testlets using dimension reduction EM algorithms, while multiple group analyses and mixed effects designs are included for detecting differential item, bundle, and test functioning, and for modeling item and person covariates. Finally, latent class models such as the DINA, DINO, multidimensional latent class, mixture IRT models, and zero-inflated response models are supported, as well as a wide family of probabilistic unfolding models.

Changes in 1.48

itemstats() gains ts_fun argument to indicate how the composite score should be formed
empirical.plot() gains other type inputs: discrim to plot reduced item-total correlations, difficulty to plot the item means, discrim_diff to produced a bivariate plot, alpha_rm for item-removal behaviour on coefficient alpha, and freq for bar-chart frequencies per item. The first three can be accompanied by a sort logical
empirical.plot() gains an org.data argument to substitute un-scored data in when building empirical trace-lines. Useful for simple distractor analysis visualization, where now the scored key(s) are auto-detected and plotted with higher contrast
Maximum EM iteration limit warning decreased to message() instead. However, if last iteration had Aitken-accelerated criterion discrepancies greater than 1e-3 then a warning will be raised to indicate that the EM algorithm is likely still climbing

From NEWS.md in the release

Install

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

install.packages("mirt", 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("philchalmers/mirt")

Development version from philchalmers/mirt. 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-mirt

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-mirt

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-mirt

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: 8.8 min · r-oldrel-windows-x86_64

Status changes

OK13 OK2026-08-26
NOTE11 OK, 2 NOTE2026-08-22
ERROR6 OK, 3 NOTE, 4 ERROR2026-08-21
NOTE11 OK, 2 NOTE2026-07-16
OK13 OK2026-05-02

Show 4 earlier changesHide 4 earlier changes

ERROR11 OK, 1 ERROR2026-04-25
NOTE12 OK, 2 NOTE2026-04-22
ERROR11 OK, 2 NOTE, 1 ERROR2026-04-18
NOTE12 OK, 2 NOTE2026-03-10

Advisories

none known

How this is measured·How advisories are found

Documentation

In release 1.48

READMEYes · 519 wordsVignettesYes · 1 · staticNEWSYes · 100% structured · mentions 1.48Citation fileYes · cites a publicationWebsiteYes · pkgdown

Cites a JSS article

Help pages: 96includes a package overview page
Examples that run: 25%21 run in a plain check · 63 only when donttest examples are enabled (R CMD check --as-cran) · 1 never run
Exported functions with examples: 100%
Documented parameters: 95%
Return-value docs: 33%
Help pages citing references: 88%

Vignettes (1)

Online Vignettes

How these are measured

Downloads

134.1K

CRAN downloads in the past year

Rank #1,082 · ~367/day · ~11.2K/mo

Releases R versions

Daily download trend is not available in this view yet.

14.2K30 days

34.6K90 days

134.1K1 year

Compare downloads with other packages →

Also on1.5K r2u6 autocran10.5K conda_forge213 c2d4u

How downloads are counted

Repository

philchalmers/mirt ↗Account: philchalmers

235Stars

88Forks

1Open issues

0Open PRs

32Releases

3,463Commits

19Commit identities

irtmirtr

3,463 commits · Last activity 2026-10-23 · 0% stars, 30d

Responsiveness

How these are sampled

PRs merged (all time): 55%
Median days to close, 50 most recently updated closed issues: 0
Median days to close, 50 most recently updated closed PRs: 0

Stars over time

2025-10-17 · 2222026-09-16 · 235

How these are measured

PracticesBeta

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

Checks run against github.com/philchalmers/mirt on 2026-10-21.

Continuous integration (2)

GitHub ActionsR CMD check workflow

The R CMD check workflow runs on Linux

Docs source (3)

pkgdown

GitHub Pages site last deployed 2026-10-06 · The repository has a site deploy workflow

pkgdown site last built 2026-10-06

Reproducibility and dev environment (1)

Makefile

Lint, format, editor (1)

RStudio project

How this is detected·Detection ruleset v4 (2026-10-20)

Dependencies

Declared dependencies

23 external dependencies (excludes base and recommended)

Installing mirt adds 63 packages (30 with compiled code, 27 MB of source tarballs). Heaviest: SimDesign 2.4 MB, Rcpp 1.8 MB, GPArotation 1.6 MB.

Depends (5)

R >= 4.1.0statsstats4latticemethods

Imports (12)

GPArotation gridExtraMatrixRcppmgcvvegan Derivsplinessplines2 pbapply dcurver SimDesign

LinkingTo (2)

Rcpp RcppArmadillo

Suggests (14)

bootparallelmirai latticeExtra directlabels shiny knitr markdown Rsolnp nloptr sirt plink mirtCAT testthat

Enhances (0)

none

Dependency license breakdown →

Reverse dependencies

44direct

3indirect

Depends 5 · Imports 39

Suggested by 27

Show the 48 most downloaded packagesHide the 48 most downloaded packages

Depends, Imports or LinkingTo, most downloaded first

Suggests, most downloaded first

nonnest2 rpf merDeriv psychotools

and 23 more packages that suggest it on CRAN ↗

How these are counted

Code & Tests

Datasets

People & History

People (12)

Phil Chalmers

Author, Maintainer since 0.1-13 (2011)

Carl F. Falk

Contributor · added in 1.15

Samuel Huang

Contributor · added in 1.46.1

KwonHyun Kim

Contributor · added in 1.15

David King

Contributor · added in 1.26.1

Chen-Wei Liu

Contributor · added in 1.27.1

Adam Meade

Contributor · added in 1.17

Ogreden Oguzhan

Contributor · added in 1.28

Joshua Pritikin

Contributor · added in 3.0.2

Show 3 more contributorsHide 3 contributors

Alexander Robitzsch

Contributor · added in 1.6.1

Lennart Schneider

Contributor · added in 1.26.1

Mateusz Zoltak

Contributor · added in 1.3

Releases (84)

Pick two releases to compare their code metrics.

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
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
R
R 3.1.0 released · 2014-04-10
3.0.3Latest
record
2014-02-20 · current release · diff ↗
3.0.2
record
2013-08-30 · diff ↗ ·
removed 2 exports
confmirt, confmirt.model

added 4 exports
PLCI.mirt, expected.item, mirt.model, mirtCluster
3.0.1
record
2013-04-20 · diff ↗ ·
added 1 export
createItem

Show 85 earlier eventsHide 85 earlier events

R
R 3.0.0 released · 2013-04-03
3.0.0
record
2013-03-18 · diff ↗ ·
added 4 exports
boot.mirt, imputeMissing, mod2values, probtrace
2.15.3
record
2013-01-16 · diff ↗ ·
added 4 exports
calcLogLik, fitIndices, mixedmirt, testinfo
2.15.2
record
2012-10-19 · diff ↗ ·
added 2 exports
polymirt, read.mirt
R
R 2.15.0 released · 2012-03-30
2.14.2
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2012-01-25 · diff ↗ ·
added 1 export
read.mirt
R
R 2.14.0 released · 2011-10-31
2.13.2
record
2011-08-09 · diff ↗
2.13.1
record
2011-07-04 · diff ↗
1.48
record
2026-10-06 · diff ↗ ·
listed once in CRAN's queue
Seen in one reading of CRAN's incoming queue, at 2026-10-06 01:12 UTC, so it stayed less than the time between readings.
1.47
record
2026-08-20 · diff ↗ ·
added 1 export
pirt
1.46.1
record
2026-03-07 · diff ↗ ·
added 1 export
marginal_moments
1.45.1
record
2025-09-06 · diff ↗
1.44.0
record
2025-01-28 · diff ↗ ·
added 1 export
DeltaMethod
1.43
record
2024-11-14 · diff ↗
1.42
record
2024-07-14 · diff ↗ ·
added 2 exports
reverse.score, secondOrderTest
1.41
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2023-10-17 · diff ↗
1.40
record
2023-08-10 · diff ↗
1.39
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2023-05-30 · diff ↗
1.38.1
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2023-02-28 · diff ↗
1.37.1
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2022-08-10 · diff ↗
1.36.1
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2022-03-22 · diff ↗
1.36
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2022-03-21 · diff ↗ ·
added 1 export
itemstats
1.35.1
record
2021-12-09 · diff ↗ ·
added 1 export
RCI
1.34
record
2021-06-28 · diff ↗
1.33.2
record
2020-10-31 · diff ↗ ·
added 5 exports
RMSD_DIF, fixedCalib, gen.difficulty, read.mirt, remap.distance
1.32.1
record
2020-04-25 · diff ↗
1.32
record
2020-04-24 · diff ↗
1.31
record
2019-09-15 · diff ↗ ·
added 1 export
likert2int
1.30
record
2019-01-29 · diff ↗
1.29
record
2018-08-12 · diff ↗ ·
added 4 exports
DRF, draw_parameters, thetaComb, traditional2mirt
1.28
record
2018-05-20 · diff ↗
1.27.1
record
2018-03-16 · diff ↗
1.26.3
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2017-11-30 · diff ↗
1.26.1
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2017-11-27 · diff ↗ ·
added 1 export
estfun.AllModelClass
1.25
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2017-07-23 · diff ↗
1.24
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2017-05-04 · diff ↗
1.23
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2017-03-02 · diff ↗
1.22
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2017-02-01 · diff ↗
1.21
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2016-12-01 · diff ↗
1.20.1
record
2016-10-05 · diff ↗ ·
added 1 export
poly2dich
1.19
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2016-08-18 · diff ↗
1.18
record
2016-06-24 · diff ↗ ·
added 2 exports
boot.LR, createGroup
1.17.1
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2016-04-27 · diff ↗
1.17
record
2016-04-27 · diff ↗ ·
added 1 export
empirical_ES
1.16
record
2016-03-07 · diff ↗ ·
added 3 exports
areainfo, lagrange, numerical_deriv
1.15
record
2016-01-21 · diff ↗ ·
added 2 exports
SIBTEST, empirical_plot
1.14
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2015-11-19 · diff ↗ ·
added 2 exports
empirical_rxx, extract.mirt
1.13
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2015-09-10 · diff ↗
1.10
record
2015-06-16 · diff ↗ ·
added 4 exports
MDIFF, MDISC, itemGAM, marginal_rxx
1.9
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2015-03-29 · diff ↗ ·
added 1 export
fixef
1.8
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2015-01-22 · diff ↗
1.7
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2014-12-15 · diff ↗ ·
added 1 export
averageMI
1.6.1
record
2014-10-10 · diff ↗ ·
removed 1 export
read.mirt

added 1 export
mdirt
1.5
record
2014-08-14 · diff ↗ ·
added 2 exports
DTF, extract.group
1.4
record
2014-06-22 · diff ↗ ·
removed 1 export
calcLogLik
1.3
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2014-04-23 · diff ↗ ·
added 1 export
expected.test
1.2.1
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2014-02-21 · diff ↗
1.2
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2014-02-20 · diff ↗ ·
removed 1 export
fitIndices

added 1 export
M2
1.1
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2013-12-20 · diff ↗ ·
added 2 exports
DIF, read.mirt
1.0
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2013-11-01 · diff ↗ ·
removed 1 export
read.mirt
0.9.0
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2013-08-31 · diff ↗
0.8.0
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2013-07-02 · diff ↗ ·
removed 1 export
polymirt

added 1 export
randef
0.7.0
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2013-04-21 · diff ↗
0.6.0
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2013-03-19 · diff ↗
0.5.0
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2013-01-17 · diff ↗
0.4.2
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2012-11-25 · diff ↗ ·
added 1 export
read.mirt
0.4.1
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2012-10-23 · diff ↗ ·
removed 1 export
read.mirt
0.4.0
record
2012-09-22 · diff ↗ ·
added 6 exports
extract.item, itemfit, iteminfo, multipleGroup, personfit, wald
0.3.0
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2012-08-23 · diff ↗ ·
removed 2 exports
polymirt, read.mirt
0.2.6
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2012-07-15 · diff ↗
0.2.5
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2012-06-07 · diff ↗
0.2.4
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2012-05-10 · diff ↗
0.2.3
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2012-05-02 · diff ↗ ·
added 1 export
read.mirt
0.2.1
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2012-04-06 · diff ↗
0.2.0
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2012-02-15 · diff ↗
0.1-20
record
2012-02-04 · diff ↗ ·
removed 1 export
read.mirt
0.1-19
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2011-11-24 · diff ↗
0.1-18
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2011-10-14 · diff ↗
0.1-17
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2011-10-12 · diff ↗
0.1-16
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2011-09-15 · diff ↗
0.1-15
record
2011-08-08 · diff ↗ ·
removed 1 export
specify.model

added 1 export
confmirt.model
0.1-14
record
2011-07-23 · diff ↗
0.1-13
record
2011-07-02
R
R 2.13.0 released · 2011-04-13

Across CRAN, the median accepted release of the past year spent 23 hours in the queue, 90% under 11 days.How queue time is measured

Package metadata

First published: 2011-07-02
Total releases: 84 / 15 yrs
License: GPL (>= 3) OSI
Minimum R: ≥ 4.1.0
Bundled data: 72 KB / 10 files
Download size: 799 KB

Appears in task views

Missing Data Psychometric Models and Methods

Cite

Cite this package

Run in R for the authors' entry:

citation("mirt")

The package provides a citation file, so citation() returns the authors' own entry.

It points to 10.18637/jss.v048.i06.

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 mirt version 1.48 [Data set]. HJJB, LLC. Data release v2026-10-23. https://doi.org/10.5281/zenodo.21843040

From data release v2026-10-23, which the citation names so these numbers can be found later. More on citing and the projects behind them.

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