R Observatory: Metrics for MixMatrix version 0.2.8

Balamuta, James Joseph

doi:10.5281/zenodo.21843040

MixMatrix

0.2.8Package record

Classification with Matrix Variate Normal and t Distributions

2packages depend

5.8Kdownloads / year

92.3%test coverage

13/13flavors OK

Overview

About

Maintained by Geoffrey ThompsonCRAN page ↗GitHub ↗Website ↗Issues ↗

Provides sampling and density functions for matrix variate normal, t, and inverted t distributions; ML estimation for matrix variate normal and t distributions using the EM algorithm, including some restrictions on the parameters; and classification by linear and quadratic discriminant analysis for matrix variate normal and t distributions described in Thompson et al. (2019) doi:10.1080/10618600.2019.1696208. Performs clustering with matrix variate normal and t mixture models.

Install

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

install.packages("MixMatrix", 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("gzt/MixMatrix")

Development version from gzt/MixMatrix. 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-mixmatrix

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-MixMatrix

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-MixMatrix

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: 3.8 min · r-devel-windows-x86_64

Status changes

OK13 OK2026-09-08
ERROR12 OK, 1 ERROR2026-09-07
OK13 OK2026-08-05
NOTE12 OK, 1 NOTE2026-08-01
OK14 OK2026-04-22

Show 2 earlier changesHide 2 earlier changes

ERROR13 OK, 1 ERROR2026-04-18
OK14 OK2026-03-10

Advisories

none known

How this is measured·How advisories are found

Documentation

In release 0.2.8

READMEYes · 614 wordsVignettesYes · 4 · dynamicNEWSYes · 100% structured · does not mention 0.2.8Citation fileNoWebsiteYes · pkgdown

Help pages: 15 (2 internal)includes a package overview page
Examples that run: 100%13 run in a plain check
Exported functions with examples: 100%
Documented parameters: 88%
Return-value docs: 100%
Help pages citing references: 53%

Vignettes (4)

How these are measured

Downloads

5.8K

CRAN downloads in the past year

Rank #7,091 · ~16/day · ~485/mo

Releases R versions

Daily download trend is not available in this view yet.

48830 days

1.2K90 days

5.8K1 year

Compare downloads with other packages →

Also on378 r2u3 autocran72 c2d4u

How downloads are counted

Repository

gzt/mixmatrix ↗Account: gzt

3Stars

2Forks

0Open issues

0Open PRs

0Releases

596Commits

7Commit identities

License file reads as GPL-3.0 · 596 commits · Last activity 2024-09-30 · 0% stars, 30d

Responsiveness

How these are sampled

PRs merged (all time): 100%
Median days to close, 50 most recently updated closed issues: not measured
Median days to close, 50 most recently updated closed PRs: 45

Stars over time

2023-09-05 · 32026-07-07 · 3

How these are measured

PracticesBeta

16 development-tooling and community-health practices detected across 7 families in the upstream repository

Checks run against github.com/gzt/mixmatrix on 2026-10-18.

Continuous integration (4)

GitHub ActionsR CMD check workflowTravis CI (config file)AppVeyor

The R CMD check workflow runs on Linux, macOS and Windows, and on R-devel

Governance and community (4)

Code of conductContributing guideIssue templatesSupport guide

Docs source (4)

README.Rmdpkgdown

GitHub Pages site last deployed 2024-09-30 · The repository has a site deploy workflow

Coverage (1)

Coverage reporting (Codecov)

Show all practicesHide 3 practices

CRAN release process (1)

cran-comments.md

Lint, format, editor (1)

lintr

Git structural (1)

.gitattributes

How this is detected·Detection ruleset v3 (2026-09-26)

Dependencies

Declared dependencies

13 external dependencies (excludes base and recommended)

Installing MixMatrix adds 4 packages (4 with compiled code, 3.0 MB of source tarballs). Heaviest: Rcpp 1.8 MB, RcppArmadillo 1.0 MB, glue 127 KB.

Depends (1)

R >= 3.5.0

Imports (4)

statsCholWishart Rcpp glue

LinkingTo (2)

Rcpp RcppArmadillo

Suggests (8)

knitr rmarkdown testthat covr ggplot2 dplyr magrittr spelling

Enhances (0)

none

Dependency license breakdown →

Reverse dependencies

2direct

0indirect

Imports 2

Depends, Imports or LinkingTo, most downloaded first

mvvg RMFM

How these are counted

Code & Tests

People & History

People (3)

Geoffrey Thompson

Author, Maintainer since 0.2.2 (2019)

B. D. Ripley

Contributor, Copyright holder

author of original lda and qda functions

W. N. Venables

Contributor, Copyright holder

author of original lda and qda functions

Releases (4)

Pick two releases to compare their code metrics.

R
R 4.6.0 released · 2026-04-24
R
R 4.5.0 released · 2025-04-11
0.2.8Latest
record
2024-09-30 · current release · diff ↗
R
R 4.4.0 released · 2024-04-24
R
R 4.3.0 released · 2023-04-21
R
R 4.2.0 released · 2022-04-22
0.2.6
record
2021-11-16 · diff ↗
R
R 4.1.0 released · 2021-05-18
R
R 4.0.0 released · 2020-04-24
0.2.4
record
2019-11-14 · diff ↗
0.2.2
record
2019-07-28
R
R 3.6.0 released · 2019-04-26

Package metadata

First published: 2019-07-28
Total releases: 4 / 7 yrs
License: GPL-3 OSI
Minimum R: ≥ 3.5.0
Download size: 174 KB

Cite

Cite this package

Run in R for the authors' preferred citation:

citation("MixMatrix")

Format

Thompson, G., Ripley, B. D., & Venables, W. N. (2024). MixMatrix: Classification with Matrix Variate Normal and t Distributions (Version 0.2.8) [Computer software]. https://doi.org/10.32614/CRAN.package.MixMatrix

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 MixMatrix version 0.2.8 [Data set]. HJJB, LLC. Data release v2026-10-20. https://doi.org/10.5281/zenodo.21843040

From data release v2026-10-20, which the citation names so these numbers can be found later. More on citing and the projects behind them.

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