R Observatory: Metrics for arl version 0.1.4

Balamuta, James Joseph

doi:10.5281/zenodo.21843040

arl

0.1.4Package record

Embedded Lisp Dialect

0packages depend

3.3Kdownloads / year

86.9%test coverage

13/13flavors OK

Overview

About

Maintained by William BrannonCRAN page ↗GitHub ↗Issues ↗

Provides a Scheme-inspired Lisp dialect embedded in R, with macros, tail-call optimization, and seamless interoperability with R functions and data structures. (The name 'arl' is short for 'An R Lisp.') Implemented in pure R with no compiled code.

Changes in 0.1.4

Performance

Reduce CRAN test runtime via uniform test thinning: on CRAN, run every 3rd test block per file (controlled by make_cran_thinner(keep_every = 3L)), cutting ~67% of per-test work while keeping full coverage off CRAN.
Reduce TCO test recursion depth on CRAN (6000 vs 10000) to further cut runtime while still validating tail-call optimization well beyond R's default stack limit.

From NEWS.md in the release

Install

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

install.packages("arl", 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("wwbrannon/arl")

Development version from wwbrannon/arl. 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-arl

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-arl

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-arl

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: 11.1 min · r-release-macos-x86_64

Status changes

OK13 OK2026-09-08
ERROR12 OK, 1 ERROR2026-09-07
OK13 OK2026-08-05
NOTE12 OK, 1 NOTE2026-08-01
OK5 OK2026-03-20

Advisories

none known

How this is measured·How advisories are found

Documentation

In release 0.1.4

README· In the repository, left out of the releaseVignettesYes · 22 · staticNEWSYes · 100% structured · mentions 0.1.4Citation fileYes · software entry only

The repository also keeps web-only articles.

Help pages: 6 (1 internal)
Examples that run: 0%3 only when donttest examples are enabled (R CMD check --as-cran)
Exported functions with examples: 50%
Documented parameters: 83%
Return-value docs: 67%
Help pages citing references: 0%

Vignettes (22)

Show 12 moreHide 12 vignettes

How these are measured

Downloads

3.3K

CRAN downloads in the past year

Rank #10,101 · ~9/day · ~271/mo

Releases R versions

Daily download trend is not available in this view yet.

34530 days

1K90 days

3.3K1 year

Compare downloads with other packages →

Also on65 r2u26 autocran

How downloads are counted

Repository

wwbrannon/arl ↗Account: wwbrannon

4Stars

0Forks

0Open issues

4Open PRs

5Releases

802Commits

2Commit identities

802 commits · Last activity 2026-04-25 · 0% stars, 30d

Responsiveness

How these are sampled

PRs merged (all time): 91%
Median days to close, 50 most recently updated closed issues: not measured
Median days to close, 50 most recently updated closed PRs: 8

Stars over time

2026-03-03 · 12026-07-07 · 4

How these are measured

PracticesBeta

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

Checks run against github.com/wwbrannon/arl on 2026-10-21.

Continuous integration (2)

GitHub ActionsR CMD check workflow

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

Governance and community (1)

Contributing guide

Docs source (4)

README.Rmdpkgdown

GitHub Pages site last deployed 2026-04-25 · The repository has a site deploy workflow

Coverage (1)

Coverage reporting (Codecov)

Show all practicesHide 5 practices

Reproducibility and dev environment (2)

MakefileDev Container

Research and citation (2)

CITATION.cffZenodo

Automation and maintenance (1)

Dependabot

Lint, format, editor (1)

lintr

Git structural (1)

.gitattributes

How this is detected·Detection ruleset v4 (2026-10-20)

AI coding toolsBeta

This repository shows signs of AI coding tools.

Claude Codefirst seen 2026-01-26
Seen in the repository: .claude, .claude/agents, CLAUDE.md
Named in .Rbuildignore: .claude, CLAUDE.md
Named in .gitignore: .claude
Commits: at least 283 crediting it in the message

Shared conventions any agent may read, so they name no particular tool.

Seen in the repository: AGENTS.md

Models named in its commits

Claude Sonnet 4.559 commits · Jan to Feb 2026
Claude Opus 4.641 commits · Feb 2026

Some of these counts are a minimum, because the search stopped before the oldest commits.

Counts are commits, not lines of code. Commits by a tool's accounts count once across all of its accounts. Commits crediting it are the largest count among its credit lines, a minimum.How this is detected·Detection ruleset v4 (updated 2026-09-27)

Dependencies

Declared dependencies

11 external dependencies (excludes base and recommended)

Installing arl adds 1 package (0 with compiled code, 63 KB of source tarballs). Heaviest: R6 63 KB.

Depends (1)

R >= 4.0

Imports (1)

R6

LinkingTo (0)

none

Suggests (10)

testthat covr lintr withr profvis bench jsonlite (>= 2.0.0)knitr rmarkdown jinjar

Enhances (0)

none

Dependency license breakdown →

Reverse dependencies

0direct

0indirect

Nothing depends on this yet.

How these are counted

Code & Tests

People & History

People (1)

William Brannon

Releases (1)

R
R 4.6.0 released · 2026-04-24
0.1.4Latest
record
2026-03-19 · current release
R
R 4.5.0 released · 2025-04-11

Package metadata

First published: 2026-03-19
Total releases: 1 / 1 yrs
License: MIT + file LICENSE OSI
Minimum R: ≥ 4.0
Download size: 407 KB

Cite

Cite this package

Run in R for the authors' entry:

citation("arl")

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

It points to 10.5281/zenodo.18740487.

The repository also keeps a CITATION.cff.

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 arl version 0.1.4 [Data set]. HJJB, LLC. Data release v2026-10-23. https://doi.org/10.5281/zenodo.21843040

From data release v2026-10-23, which the citation names so these numbers can be found later. More on citing and the projects behind them.

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