R Observatory: Metrics for RMX version 0.1-7

Balamuta, James Joseph

doi:10.5281/zenodo.21843040

RMX

0.1-7

Rasch Models -- eXtensions

0packages depend

6.2Kdownloads / year

–test coverage

13/13checks pass

Overview

About

Maintained by Rainer W. AlexandrowiczFirst published 2024-09-112 releasesCRAN page ↗

Extend Rasch and Item Response Theory (IRT) analyses by providing tools for post-processing the output from five major IRT packages (i.e., 'eRm', 'psychotools', 'ltm', 'mirt', and 'TAM'). The current version provides the plotPIccc() function, which extracts from the return object of the originating package all information required to draw an extended Person-Item-Map (PIccc), showing any combination of * category characteristic curves (CCCs), * threshold characteristic curves (TCCs), * item characteristic curves (ICCs), * category information functions (CIFs), * item information functions (IIFs), * test information function (TIF), and the * standard error curve (S.E.). for uni- and multidimensional models (as far as supported by each package). It allows for selecting dimensions, items, and categories to plot and offers numerous options to adapt the output. The return object contains all calculated values for further processing.

Install

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

install.packages("RMX", 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-rmx

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-RMX

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-RMX

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

Health

CRAN checks

13OK

Slowest check: 1.6 min · r-oldrel-macos-x86_64

Code health

None

Tests · ratio 0.00

not tracked

Coverage

100%

Documentation · exports

0

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
OK2026-03-10
14 OK · 0 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE

Documentation

READMENoVignettesNopkgdown siteNoNEWSYes · 100% structuredCode of conductNoContributing guideNo

Examples that run: 100%
Documented parameters: 97%
Return-value docs: 100%
References docs: 50%

Downloads

6.2K

CRAN downloads in the past year

Rank #7,907 · ~17/day · ~516/mo

Releases R versions

Daily download trend is not available in this view yet.

20030 days

1.1K90 days

6.2K1 year

Compare downloads with other packages →

Also on100 r2u15 autocran

Dependencies

Declared dependencies

5 external dependencies (excludes base and recommended)

Depends (1)

R >= 4.1.0

Imports (0)

none

LinkingTo (0)

none

Suggests (5)

eRm psychotools ltm mirt TAM

Enhances (0)

none

Dependency license breakdown →

Reverse dependencies

0direct

0indirect

Nothing depends on this yet.

Code & Tests

Datasets

People & History

People (2)

Maintainer (1)

Rainer W. Alexandrowicz

Author, Maintainer

Authors (2)

Rainer W. Alexandrowicz

Author, Maintainer

Milica Kabic

Author

Listed in earlier versions (1)

Alexandrowicz

no longer listed · 0.1-6 to 0.1-7

Package Timeline

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

0.1-7Latest
2026-05-19 · current release · diff ↗
R
R 4.6.0 released · 2026-04-24
0.1-6
2026-03-10
R
R 4.5.0 released · 2025-04-11

Package metadata

First published: 2024-09-11
Total releases: 2 / 2 yrs
License: GPL (>= 3) OSI
Minimum R: ≥ 4.1.0
Bundled data: 10 KB / 1 file
Download size: 55 KB
Installed size: not tracked yet
With dependencies: not tracked yet

Cite

Cite this package

Run in R for the authors' preferred citation:

citation("RMX")

Format

Alexandrowicz, R. W., & Kabic, M. (2026). RMX: Rasch Models -- eXtensions (Version 0.1-7) [Computer software]. https://doi.org/10.32614/CRAN.package.RMX

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 RMX version 0.1-7 [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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