R Observatory: Metrics for robustDIF version 0.2.0

Balamuta, James Joseph

doi:10.5281/zenodo.21843040

robustDIF

0.2.0Package record

Differential Item Functioning Using Robust Scaling

0packages dependsuggested by 1

2Kdownloads / year

48.4%test coverage

13/13flavors OK

Overview

About

Maintained by Peter HalpinCRAN page ↗

Provides tools for testing differential item functioning (DIF) and differential test functioning (DTF) in two-group item response theory models. The package estimates robust scaling parameters via iteratively reweighted least squares with Tukey's bisquare loss, and supports Wald-type tests of item-level and test-level differences from robust scaling parameters. Inputs can be supplied directly from model parameter/covariance objects or extracted from fitted 'mirt' and 'lavaan' models. Methods are described in Halpin (2022) doi:10.48550/arXiv.2207.04598.

Install

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

install.packages("robustDIF", 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-robustdif

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-robustDIF

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-robustDIF

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: 2.7 min · r-oldrel-windows-x86_64

Status changes

OK13 OK2026-08-04
NOTE12 OK, 1 NOTE2026-08-01
OK13 OK2026-06-09
ERROR12 OK, 1 ERROR2026-06-08
OK8 OK2026-04-22

Advisories

none known

How this is measured·How advisories are found

Documentation

In release 0.2.0

READMEYes · 918 wordsVignettesNoNEWSNoCitation fileNoWebsitenot declared in DESCRIPTION

Help pages: 26 (4 internal)
Examples that run: 0%3 only when donttest examples are enabled (R CMD check --as-cran)
Exported functions with examples: 43%
Documented parameters: 100%
Return-value docs: 100%
Help pages citing references: 0%

How these are measured

Downloads

2K

CRAN downloads in the past year

Rank #15,800 · ~6/day · ~171/mo

Releases R versions

Daily download trend is not available in this view yet.

28630 days

78890 days

2K1 year

Compare downloads with other packages →

Also on36 r2u4 autocran

How downloads are counted

Dependencies

Declared dependencies

3 external dependencies (excludes base and recommended)

Installing robustDIF adds 69 packages (34 with compiled code, 29 MB of source tarballs). Heaviest: SimDesign 2.4 MB, Rcpp 1.8 MB, GPArotation 1.6 MB.

Depends (2)

R >= 3.5.0Matrix

Imports (2)

mirt lavaan

LinkingTo (0)

none

Suggests (1)

testthat

Enhances (0)

none

Dependency license breakdown →

Reverse dependencies

0direct

0indirect

Suggested by 1

Suggests, most downloaded first

aiDIF

How these are counted

Code & Tests

Datasets

People & History

People (3)

Peter Halpin

Author, Maintainer since 0.2.0 (2026)

James Eagle

Contributor

Kyle Nickodem

Contributor

Releases (1)

R
R 4.6.0 released · 2026-04-24
0.2.0Latest
record
2026-04-21 · current release
R
R 4.5.0 released · 2025-04-11

Package metadata

First published: 2026-04-21
Total releases: 1 / 1 yrs
License: GPL (>= 3) OSI
Minimum R: ≥ 3.5.0
Bundled data: 1.7 KB / 1 file
Download size: 24 KB

Cite

Cite this package

Run in R for the authors' preferred citation:

citation("robustDIF")

Format

Halpin, P., Eagle, J., & Nickodem, K. (2026). robustDIF: Differential Item Functioning Using Robust Scaling (Version 0.2.0) [Computer software]. https://doi.org/10.32614/CRAN.package.robustDIF

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 robustDIF version 0.2.0 [Data set]. HJJB, LLC. Data release v2026-10-25. https://doi.org/10.5281/zenodo.21843040

From data release v2026-10-25, which the citation names so these numbers can be found later. More on citing and the projects behind them.

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