R Observatory: Metrics for mefa4 version 0.3-12

Balamuta, James Joseph

doi:10.5281/zenodo.21843040

mefa4

0.3-12

Multivariate Data Handling with S4 Classes and Sparse Matrices

3packages depend

6.4Kdownloads / year

82.2%test coverage

13/13checks pass

Overview

About

Maintained by Peter SolymosFirst published 2011-02-1028 releasesCRAN page ↗GitHub ↗

An S4 update of the 'mefa' package using sparse matrices for enhanced efficiency. Sparse array-like objects are supported via lists of sparse matrices.

Install

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

install.packages("mefa4", 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("psolymos/mefa4")

Development version from psolymos/mefa4. 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-mefa4

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-mefa4

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-mefa4

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

Health

CRAN checks

13OK

Slowest check: 2.5 min · r-oldrel-macos-x86_64

Code health

Yes

Tests · ratio 0.28

82.2%

Coverage · measured lines

94%

Documentation · exports

2

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 siteNoNEWSNoCode of conductNoContributing guideNo

Examples that run: 85%
Documented parameters: 89%
Return-value docs: 100%
References docs: 15%

Downloads

6.4K

CRAN downloads in the past year

Rank #10,240 · ~17/day · ~531/mo

Releases R versions

Daily download trend is not available in this view yet.

23530 days

92990 days

6.4K1 year

Compare downloads with other packages →

Also on100 r2u30 autocran

Repository

GitHub ↗ psolymos/mefa4

0Stars

0Forks

0Open issues

0Open PRs

3Releases

733Commits

4Contributors

sparse-matricesrcranecologydata-manipulation

733 commits · Last activity 2026-04-25

Releases over time

2018-07-06 · 32026-07-07 · 3

Repository practices

Upstream repositoryBeta

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

Checks run against github.com/psolymos/mefa4 on 2026-08-16.

Continuous integration (1)

GitHub Actions

Lint, format, editor (1)

RStudio project

Git structural (1)

.gitattributes

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

Dependencies

Declared dependencies

1 external dependency (excludes base and recommended)

Depends (3)

R >= 3.2.0methodsMatrix

Imports (0)

none

LinkingTo (0)

none

Suggests (1)

mefa

Enhances (0)

none

Dependency license breakdown →

Reverse dependencies

3direct

0indirect

bSims opticut mefa

Code & Tests

Datasets

People & History

People (1)

Maintainer (1)

Peter Solymos

Author, Maintainer

Authors (1)

Peter Solymos

Author, Maintainer

Package Timeline

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

R
R 4.6.0 released · 2026-04-24
0.3-12Latest
2025-07-14 · current release · diff ↗
R
R 4.5.0 released · 2025-04-11
0.3-11
2024-05-20 · diff ↗
R
R 4.4.0 released · 2024-04-24
R
R 4.3.0 released · 2023-04-21
0.3-9
2022-09-12 · diff ↗
R
R 4.2.0 released · 2022-04-22
0.3-8
2021-10-06 · diff ↗
R
R 4.1.0 released · 2021-05-18
R
R 4.0.0 released · 2020-04-24
0.3-7
2020-02-28 · diff ↗
0.3-6
2019-06-21 · diff ↗
R
R 3.6.0 released · 2019-04-26
R
R 3.5.0 released · 2018-04-23
0.3-5
2018-03-25 · diff ↗

Show 30 earlier events

R
R 3.4.0 released · 2017-04-21
0.3-4
2016-10-14 · diff ↗
R
R 3.3.0 released · 2016-05-03
0.3-3
2016-03-01 · diff ↗
0.3-2
2015-11-22 · diff ↗
R
R 3.2.0 released · 2015-04-16
0.3-1
2014-05-16 · diff ↗
R
R 3.1.0 released · 2014-04-10
0.3-0
2013-10-08 · diff ↗
3.0.2
2013-09-25 · diff ↗
0.2-9
2013-07-11 · diff ↗
R
R 3.0.0 released · 2013-04-03
0.2-8
2012-07-07 · diff ↗
2.15.2
2012-07-06 · diff ↗
0.2-7
2012-05-14 · diff ↗
2.15.1
2012-05-02 · diff ↗
R
R 2.15.0 released · 2012-03-30
2.15.0
2012-03-19 · diff ↗
0.2-6
2012-03-19 · diff ↗
R
R 2.14.0 released · 2011-10-31
0.2-4
2011-10-17 · diff ↗
2.13.2
2011-08-23 · diff ↗
0.2-3
2011-08-23 · diff ↗
0.2-2
2011-07-23 · diff ↗
0.2-1
2011-05-15 · diff ↗
2.13.1
2011-05-13 · diff ↗
R
R 2.13.0 released · 2011-04-13
2.12.2
2011-02-14 · diff ↗
0.2-0
2011-02-10
R
R 2.12.0 released · 2010-10-15

Package metadata

First published: 2011-02-10
Total releases: 28 / 15 yrs
License: GPL-2 OSI
Minimum R: ≥ 3.2.0
Bundled data: 293 KB / 1 file
Download size: 316 KB
Installed size: not tracked yet
With dependencies: not tracked yet

Cite

Cite this package

Run in R for the authors' preferred citation:

citation("mefa4")

Format

Solymos, P. (2025). mefa4: Multivariate Data Handling with S4 Classes and Sparse Matrices (Version 0.3-12) [Computer software]. https://doi.org/10.32614/CRAN.package.mefa4

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 mefa4 version 0.3-12 [Data set]. HJJB, LLC. Data release v2026-08-21. https://doi.org/10.5281/zenodo.21843040

From data release v2026-08-21, which the citation names so these numbers can be found later. More on citing and the projects behind them.

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