matlib

1.0.1

Matrix Functions for Teaching and Learning Linear Algebra and Multivariate Statistics

13packages depend

61.6Kdownloads / year

–test coverage

13/13checks pass

Overview

About

Maintained by Michael FriendlyFirst published 2015-11-0517 releasesCRAN page ↗GitHub ↗

A collection of matrix functions for teaching and learning matrix linear algebra as used in multivariate statistical methods. Many of these functions are designed for tutorial purposes in learning matrix algebra ideas using R. In some cases, functions are provided for concepts available elsewhere in R, but where the function call or name is not obvious. In other cases, functions are provided to show or demonstrate an algorithm. In addition, a collection of functions are provided for drawing vector diagrams in 2D and 3D and for rendering matrix expressions and equations in LaTeX.

Install

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

install.packages("matlib", 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("friendly/matlib")

Development version from friendly/matlib. 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-matlib

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-matlib

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-matlib

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

Health

CRAN checks

13OK

Slowest check: 3.6 min · r-devel-linux-x86_64-fedora-clang

Code health

None

Tests · ratio 0.00

not tracked

Coverage

99%

Documentation · exports

Dependencies · direct

Check history

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

Documentation

READMENoVignettesYes · dynamicpkgdown siteNoNEWSYes · 100% structuredCode of conductNoContributing guideNo

Examples that run: 98%
Documented parameters: 93%
Return-value docs: 92%
References docs: 23%

Downloads

61.6K

CRAN downloads in the past year

Rank #1,621 · ~169/day · ~5.1K/mo

Releases R versions

Daily download trend is not available in this view yet.

2.7K30 days

17.3K90 days

61.6K1 year

Compare downloads with other packages →

Also on236 r2u15 autocran2.1K conda_forge41 c2d4u

Repository

GitHub ↗ friendly/matlib

72Stars

17Forks

7Open issues

0Open PRs

11Releases

848Commits

8Contributors

linear-equationsmatrix-functionsmatrixvectorvignettematrix-visualizerdiagrams

848 commits · Last activity 2025-10-05 · 0% stars, 30d

Stars over time

2025-06-29 · 672026-07-07 · 72

Repository practices

Upstream repositoryBeta

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

Checks run against github.com/friendly/matlib on 2026-07-19.

Continuous integration (1)

Travis CI

CRAN release process (2)

cran-comments.mdrevdep/

Git structural (1)

.gitattributes

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

Dependencies

Declared dependencies

12 external dependencies (excludes base and recommended)

Depends (1)

R >= 4.2.0

Imports (9)

xtableMASSrgl carmethodsdplyr knitr rmarkdown rstudioapi

LinkingTo (0)

none

Suggests (5)

carData webshot2 markdown bookdown clipr

Enhances (0)

none

Dependency license breakdown →

Reverse dependencies

13direct

0indirect

BTIME ETRep GoodFibes IOLS MVNGmod MVSKmod RMCDA SurprisalAnalysis VIRF biplotbootGUI hyperoverlap panelSUR smallstuff

Code & Tests

Code Composition

R 6,525 (47%)Rd 4,635 (34%)Vignettes 2,574 (19%)Other 22 (0%)JavaScript 1 (0%)

Code characteristics

Object systems

S338S4 method1

Cyclomatic complexity: 2.0 median / 97 max

Test coverage

Line coverage

–

Expression

–

Tests / Examples

–

Functions

144 88 exported

Complexity

5.8 avg / 97 max

Call network

144 nodes / 172 edges

Call graph

Open call graph →

Loading call graph…

Lowest coverage

Per-function coverage is not measured for this package yet.

Datasets

Bundled datasets · 4

Name	Class	Rows × Cols	Also ships in
class	data.frame	15 × 4	–
coffee	data.frame	20 × 4	–
therapy	data.frame	10 × 4	–
workers	data.frame	10 × 4	–

People & History

People (5)

Maintainer (1)

Michael Friendly

Author, Maintainer

Authors (3)

Michael Friendly

Author, Maintainer

Phil Chalmers

Author · added in 0.7.3

John Fox

Author

Contributors (2)

Georges Monette

Contributor

Gaston Sanchez

Contributor · added in 0.6.0

Package Timeline

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

R
R 4.6.0 released · 2026-04-24
1.0.1Latest
2025-10-09 · current release · diff ↗
R
R 4.5.0 released · 2025-04-11
1.0.0
2024-10-02 · diff ↗
0.9.8
2024-07-25 · diff ↗
R
R 4.4.0 released · 2024-04-24
R
R 4.3.0 released · 2023-04-21
0.9.6
2022-12-08 · diff ↗
R
R 4.2.0 released · 2022-04-22
0.9.5
2021-08-21 · diff ↗
R
R 4.1.0 released · 2021-05-18
0.9.4
2020-10-29 · diff ↗
R
R 4.0.0 released · 2020-04-24
0.9.3
2020-04-02 · diff ↗
0.9.2
2019-05-29 · diff ↗
R
R 3.6.0 released · 2019-04-26

Show 13 earlier events

R
R 3.5.0 released · 2018-04-23
0.9.1
2018-04-04 · diff ↗
R
R 3.4.0 released · 2017-04-21
0.8.1
2016-09-17 · diff ↗
0.7.3
2016-06-06 · diff ↗
R
R 3.3.0 released · 2016-05-03
0.7.2
2016-02-08 · diff ↗
0.7.0
2016-01-06 · diff ↗
0.6.0
2015-12-15 · diff ↗
0.5.2
2015-11-19 · diff ↗
0.5.1
2015-11-10 · diff ↗
0.4.1
2015-11-05
R
R 3.2.0 released · 2015-04-16

Package metadata

First published: 2015-11-05
Total releases: 17 / 11 yrs
License: GPL (>= 2) OSI
Minimum R: ≥ 4.2.0
Bundled data: 1.3 KB / 4 files
Download size: 798 KB
Installed size: not tracked yet
With dependencies: not tracked yet

Appears in task views

Numerical Mathematics

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