GMLTM

0.1.0

Generalized Multicomponent Latent Trait Model for Diagnosis

0packages depend

366downloads / year

1.2%test coverage

13/13checks pass

Overview

About

Maintained by Eduar RamirezFirst published 2026-06-301 releasesCRAN page ↗GitHub ↗

Provides Bayesian estimation of Item Response Theory models that decompose item difficulty into cognitive operations or rules. Implements the Linear Logistic Test Model (LLTM; Fischer (1973) doi:10.1016/0001-6918(73)90003-6), the Multicomponent Latent Trait Model for Diagnosis (MLTM-D; Embretson and Yang (2013) doi:10.1007/s11336-012-9296-y), and the Generalized Multicomponent Latent Trait Model for Diagnosis (GMLTM-D; Ramirez et al. (2024) doi:10.3390/jintelligence12070067). All models are estimated via Hamiltonian Monte Carlo using 'Stan' through the 'rstan' interface. Includes tools for model validation, reliability estimation, and visualization of item characteristic curves. Supports user-defined prior distributions for all model parameters.

Install

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

install.packages("GMLTM", 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("Eduar-Ramirez/GMLTM-D")

Development version from Eduar-Ramirez/GMLTM-D. Installs pak first if it is not already available.

# 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-GMLTM

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-GMLTM

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

Health

CRAN checks

13OK

Slowest check: 3.2 min · r-devel-linux-x86_64-fedora-clang

Code health

Yes

Tests · ratio 0.01

1.2%

Coverage · measured lines

100%

Documentation · exports

Dependencies · direct

Check history

OK2026-07-01
7 OK · 0 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE

Documentation

READMEYes · 395 wordsVignettesYes · staticpkgdown siteNoNEWSYes · 67% structuredCode of conductNoContributing guideNo

Examples that run: 0%
Documented parameters: 94%
Return-value docs: 100%
References docs: 23%

Downloads

366

CRAN downloads in the past year

Rank #23,982 · ~1/day · ~31/mo

Releases R versions

Daily download trend is not available in this view yet.

36630 days

36690 days

3661 year

Compare downloads with other packages →

Repository

GitHub ↗ eduar-ramirez/gmltm-d

0Stars

0Forks

0Open issues

0Open PRs

0Releases

License GPL-3.0 · Last activity 2026-06-08

Repository practices

Upstream repositoryBeta

3 development-tooling and community-health practices detected across 2 families in the upstream repository

Checks run against github.com/eduar-ramirez/gmltm-d on 2026-07-30.

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

8 external dependencies (excludes base and recommended)

Depends (1)

R >= 4.1.0

Imports (8)

rstan ggplot2 gridExtragridutilsparallelloo RColorBrewer

LinkingTo (0)

none

Suggests (3)

testthat knitr rmarkdown

Enhances (0)

none

Dependency license breakdown →

Reverse dependencies

0direct

0indirect

Nothing depends on this yet.

Code & Tests

Datasets

People & History

People (4)

Maintainer (1)

Eduar Ramirez

Author, Maintainer

Authors (4)

Author, Maintainer

Author

Author

Author

Package Timeline

1 release. R releases are shown for context.

0.1.0Latest
2026-06-30 · current release
R
R 4.6.0 released · 2026-04-24

Package metadata

First published: 2026-06-30
Total releases: 1 / 1 yrs
License: GPL (>= 3) OSI
Minimum R: ≥ 4.1.0
Bundled data: 2.5 KB / 1 file
Download size: not tracked yet
Installed size: not tracked yet
With dependencies: not tracked yet

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