R Observatory: Metrics for irtsim version 0.2.0

Balamuta, James Joseph

doi:10.5281/zenodo.21843040

irtsim

0.2.0

Monte Carlo Simulation-Based Sample-Size Planning for Item Response Theory

0packages depend

1Kdownloads / year

84.8%test coverage

13/13checks pass

Overview

About

Maintained by Stephen WardFirst published 2026-04-243 releasesCRAN page ↗GitHub ↗

Provides a pipeline application programming interface (API) for Monte Carlo simulation-based sample-size planning in item response theory (IRT). Implements the 10-decision framework from Schroeders and Gnambs (2025) doi:10.1177/25152459251314798 as a three-step workflow: specify the data-generating model with irt_design(), add study conditions with irt_study(), and run simulations with irt_simulate(). Supports one-parameter logistic (1PL), two-parameter logistic (2PL), three-parameter logistic (3PL), graded response (GRM), partial credit (PCM), and generalized partial credit (GPCM) models with missing-completely-at-random (MCAR), missing-at-random (MAR), booklet, and linking missingness mechanisms. Results include mean squared error (MSE), bias, root mean squared error (RMSE), standard error (SE), and coverage criteria with summary and plot methods.

Install

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

install.packages("irtsim", 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("sward1/irtsim")

Development version from sward1/irtsim. 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-irtsim

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-irtsim

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-irtsim

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

Health

CRAN checks

13OK

Slowest check: 14.9 min · r-devel-windows-x86_64

Code health

Yes

Tests · ratio 1.86

84.8%

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
OK2026-06-09
13 OK · 0 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE
ERROR2026-06-08
12 OK · 0 NOTE · 0 WARNING · 1 ERROR · 0 FAILURE
OK2026-04-24
4 OK · 0 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE

Documentation

READMENoVignettesYes · dynamicpkgdown siteNoNEWSYes · 100% structuredCode of conductNoContributing guideNo

Examples that run: 61%
Documented parameters: 100%
Return-value docs: 100%
References docs: 7%

Downloads

1K

CRAN downloads in the past year

Rank #17,175 · ~3/day · ~85/mo

Releases R versions

Daily download trend is not available in this view yet.

16530 days

62390 days

1K1 year

Compare downloads with other packages →

Also on31 r2u16 autocran

Repository

GitHub ↗ sward1/irtsim

0Stars

0Forks

0Open issues

0Open PRs

3Releases

31Commits

2Contributors

31 commits · Last activity 2026-06-28

Releases over time

2026-04-23 · 12026-07-07 · 3

Repository practices

Upstream repositoryBeta

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

Checks run against github.com/sward1/irtsim on 2026-08-16.

Continuous integration (1)

GitHub Actions

Reproducibility and dev environment (1)

data-raw/

CRAN release process (2)

cran-comments.mdCRAN-SUBMISSION

Lint, format, editor (1)

RStudio project

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

Dependencies

Declared dependencies

11 external dependencies (excludes base and recommended)

Depends (1)

R >= 4.1.0

Imports (5)

cli future.apply ggplot2 mirt rlang

LinkingTo (0)

none

Suggests (6)

future knitr R.rsp rmarkdown scales testthat

Enhances (0)

none

Dependency license breakdown →

Reverse dependencies

0direct

0indirect

Nothing depends on this yet.

Code & Tests

People & History

People (1)

Maintainer (1)

Stephen Ward

Author, Maintainer

Authors (1)

Stephen Ward

Author, Maintainer

Package Timeline

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

0.2.0Latest
2026-06-27 · current release · diff ↗
0.1.2
2026-05-05 · diff ↗
0.1.1
2026-04-24
R
R 4.6.0 released · 2026-04-24
R
R 4.5.0 released · 2025-04-11

Package metadata

First published: 2026-04-24
Total releases: 3 / 1 yrs
License: GPL (>= 3) OSI
Minimum R: ≥ 4.1.0
Download size: 639 KB
Installed size: not tracked yet
With dependencies: not tracked yet

Cite

Cite this package

Run in R for the authors' preferred citation:

citation("irtsim")

Format

Ward, S. (2026). irtsim: Monte Carlo Simulation-Based Sample-Size Planning for Item Response Theory (Version 0.2.0) [Computer software]. https://doi.org/10.32614/CRAN.package.irtsim

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 irtsim version 0.2.0 [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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