equateIRT

2.5.2

IRT Equating Methods

2packages depend

7.1Kdownloads / year

–test coverage

13/13checks pass

Overview

About

Maintained by Michela BattauzFirst published 2013-06-2422 releasesCRAN page ↗

Computation of direct, chain and average (bisector) equating coefficients with standard errors using Item Response Theory (IRT) methods for dichotomous items (Battauz (2013) doi:10.1007/s11336-012-9316-y, Battauz (2015) doi:10.18637/jss.v068.i07). Test scoring can be performed by true score equating and observed score equating methods. DIF detection can be performed using a Wald-type test (Battauz (2019) doi:10.1007/s10260-018-00442-w). The package includes tests to assess the stability of the equating transformations (Battauz(2022) doi:10.1111/stan.12277).

Install

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

install.packages("equateIRT", 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-equateirt

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-equateIRT

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-equateIRT

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

Health

CRAN checks

13OK

Slowest check: 5.6 min · r-devel-linux-x86_64-fedora-clang

Code health

None

Tests · ratio 0.00

not tracked

Coverage

100%

Documentation · exports

Dependencies · direct

Check history

OK2026-06-27
13 OK · 0 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE
WARNING2026-06-14
12 OK · 0 NOTE · 1 WARNING · 0 ERROR · 0 FAILURE
OK2026-06-09
13 OK · 0 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE
ERROR2026-06-08
12 OK · 0 NOTE · 0 WARNING · 1 ERROR · 0 FAILURE
OK2026-05-02
13 OK · 0 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE

Show 4 earlier snapshots

ERROR2026-04-25
11 OK · 0 NOTE · 0 WARNING · 1 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

READMENoVignettesYes · dynamicpkgdown siteNoNEWSNoCode of conductNoContributing guideNo

Examples that run: 100%
Documented parameters: 100%
Return-value docs: 100%
References docs: 48%

Downloads

7.1K

CRAN downloads in the past year

Rank #6,104 · ~19/day · ~591/mo

Releases R versions

Daily download trend is not available in this view yet.

45030 days

1.6K90 days

7.1K1 year

Compare downloads with other packages →

Also on110 r2u37 autocran83 c2d4u

Dependencies

Declared dependencies

6 external dependencies (excludes base and recommended)

Depends (0)

none

Imports (4)

statmodstatsutilsmirt

LinkingTo (0)

none

Suggests (4)

knitr ltm rmarkdown sna

Enhances (0)

none

Dependency license breakdown →

Reverse dependencies

2direct

0indirect

equateMultiple kequate

Code & Tests

Code Composition

R 2,603 (41%)Rd 2,251 (36%)Vignettes 1,185 (19%)Other 244 (4%)

Code characteristics

Object systems

S333

Cyclomatic complexity: 3.0 median / 64 max

Test coverage

Line coverage

–

Expression

–

Tests / Examples

–

Functions

70 17 exported

Complexity

8.1 avg / 64 max

Call network

70 nodes / 49 edges

Call graph

Open call graph →

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Lowest coverage

Per-function coverage is not measured for this package yet.

Datasets

Bundled datasets · 1

Name	Class	Rows × Cols	Also ships in
dataDIF	data.frame	3,000 × 21	–

People & History

People (1)

Maintainer (1)

Michela Battauz

Author, Maintainer

Authors (1)

Michela Battauz

Author, Maintainer

Package Timeline

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

R
R 4.6.0 released · 2026-04-24
2.5.2Latest
2025-04-30 · current release · diff ↗
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R 4.5.0 released · 2025-04-11
2.5.1
2024-10-04 · diff ↗
2.5.0
2024-07-30 · diff ↗
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R 4.4.0 released · 2024-04-24
2.4.0
2024-03-26 · diff ↗
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R 4.3.0 released · 2023-04-21
2.3.0
2022-08-08 · diff ↗
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R 4.2.0 released · 2022-04-22
2.2.1
2021-10-08 · diff ↗
2.2.0
2021-05-31 · diff ↗
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R 4.1.0 released · 2021-05-18
R
R 4.0.0 released · 2020-04-24
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R 3.6.0 released · 2019-04-26
2.1.0
2018-10-02 · diff ↗

Show 20 earlier events

2.0-5
2018-06-08 · diff ↗
R
R 3.5.0 released · 2018-04-23
2.0-4
2017-11-02 · diff ↗
2.0-3
2017-06-22 · diff ↗
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R 3.4.0 released · 2017-04-21
2.0-2
2017-03-30 · diff ↗
2.0-1
2016-07-25 · diff ↗
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R 3.3.0 released · 2016-05-03
2.0
2016-03-30 · diff ↗
1.2-3
2016-02-04 · diff ↗
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R 3.2.0 released · 2015-04-16
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R 3.1.0 released · 2014-04-10
1.0-1
2013-07-04 · diff ↗
3.0.2
2013-07-02 · diff ↗
1.0
2013-06-24
R
R 3.0.0 released · 2013-04-03

Package metadata

First published: 2013-06-24
Total releases: 22 / 13 yrs
License: GPL-3 OSI
Bundled data: 322 KB / 5 files
Download size: 899 KB
Installed size: not tracked yet
With dependencies: not tracked yet

Appears in task views

Psychometric Models and Methods

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