R Observatory: Metrics for lorentz version 1.1-3

Balamuta, James Joseph

doi:10.5281/zenodo.21843040

lorentz

1.1-3Package record

The Lorentz Transformation in Relativistic Physics

0packages dependsuggested by 1

3.3Kdownloads / year

90.4%test coverage

13/13flavors OK

Overview

About

Maintained by Robin K. S. HankinCRAN page ↗GitHub ↗Website ↗Issues ↗

The Lorentz transformation in special relativity; also the gyrogroup structure of three-velocities. Performs active and passive transformations and has the ability to use units in which the speed of light is not unity. Includes some experimental functionality for celerity and rapidity. For general relativity, see the 'schwarzschild' package.

Changes in 1.1-3

citation info
typos

From NEWS.md in the release

Install

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

install.packages("lorentz", 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("RobinHankin/lorentz")

Development version from RobinHankin/lorentz. 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-lorentz

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-lorentz

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-lorentz

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: 2.1 min · r-release-macos-x86_64

Status changes

OK13 OK2026-08-05
NOTE12 OK, 1 NOTE2026-08-01
OK13 OK2026-07-25
NOTE12 OK, 1 NOTE2026-07-11
OK13 OK2026-06-27

Show 2 earlier changesHide 2 earlier changes

WARNING12 OK, 1 WARNING2026-06-14
OK14 OK2026-03-10

Advisories

none known

How this is measured·How advisories are found

Documentation

In release 1.1-3

READMEYes · 410 wordsVignettesYes · 1 · dynamicNEWSYes · 67% structured · mentions 1.1-3Citation fileYes · cites a publicationWebsiteYes · pkgdown

Help pages: 23includes a package overview page
Examples that run: 100%23 run in a plain check
Exported functions with examples: 100%
Documented parameters: not tracked
Return-value docs: not tracked
Help pages citing references: 13%

Vignettes (1)

The lorentz package PDF

How these are measured

Downloads

3.3K

CRAN downloads in the past year

Rank #12,165 · ~9/day · ~275/mo

Releases R versions

Daily download trend is not available in this view yet.

35330 days

90290 days

3.3K1 year

Compare downloads with other packages →

Also on97 r2u4 autocran

How downloads are counted

Repository

robinhankin/lorentz ↗Account: RobinHankin

4Stars

1Forks

10Open issues

0Open PRs

1Releases

638Commits

3Commit identities

License file reads as GPL-3.0 · 638 commits · Last activity 2026-09-17 · Default branch at 1.1-5, ahead of CRAN 1.1-3 (checked 2026-10-18)

Responsiveness

How these are sampled

PRs merged (all time): 100%
Median days to close, 50 most recently updated closed issues: 1
Median days to close, 50 most recently updated closed PRs: 0

Stars over time

2024-04-04 · 42026-07-07 · 4

How these are measured

PracticesBeta

9 development-tooling and community-health practices detected across 5 families in the upstream repository

Checks run against github.com/robinhankin/lorentz on 2026-10-18.

Continuous integration (1)

GitHub Actions

Governance and community (2)

Code of conductContributing guide

Docs source (4)

README.Rmdpkgdown

GitHub Pages site last deployed 2026-09-17 · The repository has a site deploy workflow

pkgdown site last built 2026-09-17

Coverage (1)

Coverage reporting

Show all practicesHide 1 practice

Lint, format, editor (1)

RStudio project

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

Dependencies

Declared dependencies

8 external dependencies (excludes base and recommended)

Installing lorentz adds 5 packages (1 with compiled code, 540 KB of source tarballs). Heaviest: magrittr 275 KB, magic 176 KB, quadform 65 KB.

Depends (1)

R >= 4.1.0

Imports (4)

quadform tensor magic magrittr

LinkingTo (0)

none

Suggests (4)

knitr testthat rmarkdown covr

Enhances (0)

none

Dependency license breakdown →

Reverse dependencies

0direct

0indirect

Suggested by 1

Suggests, most downloaded first

clifford

How these are counted

Code & Tests

People & History

People (1)

Robin K. S. Hankin

Author, Maintainer since 1.0-0 (2018)

Listed in earlier versions (1)

Hankin

no longer listed · 1.0-2 to 1.1-3

Releases (7)

Pick two releases to compare their code metrics.

1.1-3Latest
record
2026-07-20 · current release · diff ↗
R
R 4.6.0 released · 2026-04-24
R
R 4.5.0 released · 2025-04-11
1.1-2
record
2025-01-23 · diff ↗
R
R 4.4.0 released · 2024-04-24
1.1-1
record
2024-04-02 · diff ↗
R
R 4.3.0 released · 2023-04-21
R
R 4.2.0 released · 2022-04-22
R
R 4.1.0 released · 2021-05-18
1.0-5
record
2020-09-24 · diff ↗ ·
added 1 export
pattern:4vel
R
R 4.0.0 released · 2020-04-24
R
R 3.6.0 released · 2019-04-26
1.0-2
record
2019-03-21 · diff ↗
1.0-1
record
2019-01-24 · diff ↗
1.0-0
record
2018-10-08
R
R 3.5.0 released · 2018-04-23

Package metadata

First published: 2018-10-08
Total releases: 7 / 8 yrs
License: GPL-3 OSI
Minimum R: ≥ 4.1.0
Download size: 442 KB

Appears in task views

Chemometrics and Computational Physics

Cite

Cite this package

Run in R for the authors' entry:

citation("lorentz")

The package provides a citation file, so citation() returns the authors' own entry.

It points to 10.21105/jose.00196.

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 lorentz version 1.1-3 [Data set]. HJJB, LLC. Data release v2026-10-21. https://doi.org/10.5281/zenodo.21843040

From data release v2026-10-21, which the citation names so these numbers can be found later. More on citing and the projects behind them.

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