R Observatory: Metrics for arcopt version 0.3.0

Balamuta, James Joseph

doi:10.5281/zenodo.21843040

arcopt

0.3.0

Adaptive Regularization using Cubics for Optimization

0packages depend

1.3Kdownloads / year

80.0%test coverage

13/13checks pass

Overview

About

Maintained by Marcus WaldmanFirst published 2026-04-291 releasesCRAN page ↗GitHub ↗

Implements cubic regularization methods (ARC) for local optimization problems common in statistics and applied research. Provides robust handling of ill-conditioned, nonconvex, and indefinite Hessian problems with automatic saddle point escape. Supports box constraints; linear equality constraints are planned for a future release.

Install

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

install.packages("arcopt", 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("marcus-waldman/arcopt")

Development version from marcus-waldman/arcopt. 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-arcopt

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-arcopt

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-arcopt

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

Health

CRAN checks

13OK

Slowest check: 3.0 min · r-devel-windows-x86_64

Code health

Yes

Tests · ratio 1.06

80.0%

Coverage · measured lines

100%

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
OK2026-04-30
7 OK · 0 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE

Documentation

READMEYes · 846 wordsVignettesYes · dynamicpkgdown siteNoNEWSYes · 100% structuredCode of conductNoContributing guideNo

Examples that run: 0%
Documented parameters: 78%
Return-value docs: 100%
References docs: 13%

Downloads

1.3K

CRAN downloads in the past year

Rank #9,835 · ~4/day · ~110/mo

Releases R versions

Daily download trend is not available in this view yet.

20230 days

96790 days

1.3K1 year

Compare downloads with other packages →

Also on108 r2u38 autocran

Repository

GitHub ↗ marcus-waldman/arcopt

0Stars

0Forks

1Open issues

0Open PRs

0Releases

Last activity 2026-04-28

Repository practices

Upstream repositoryBeta

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

Checks run against github.com/marcus-waldman/arcopt on 2026-08-16.

Continuous integration (1)

GitHub Actions

CRAN release process (1)

cran-comments.md

Lint, format, editor (2)

lintrRStudio project

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

Development tooling

AI-assisted toolingBeta

Uses AI-assisted development tooling (declared in repo)

Earliest detected marker: claude on 2026-01-03

claude

Most recent: claude on 2026-01-03

Evidence

claude: on 2026-01-03 · evidence B, D

How this is detected·Detection ruleset v2 (updated 2026-07-29)

Dependencies

Declared dependencies

8 external dependencies (excludes base and recommended)

Depends (1)

R >= 4.1.0

Imports (2)

Rcpputils

LinkingTo (1)

Rcpp

Suggests (6)

testthat knitr rmarkdown covr marqLevAlg trust

Enhances (0)

none

Dependency license breakdown →

Reverse dependencies

0direct

0indirect

Nothing depends on this yet.

Code & Tests

People & History

People (1)

Maintainer (1)

Marcus Waldman

Author, Maintainer

Authors (1)

Marcus Waldman

Author, Maintainer

Package Timeline

1 release. R releases are shown for context.

0.3.0Latest
2026-04-29 · current release
R
R 4.6.0 released · 2026-04-24

Package metadata

First published: 2026-04-29
Total releases: 1 / 1 yrs
License: MIT + file LICENSE OSI
Minimum R: ≥ 4.1.0
Download size: 110 KB
Installed size: not tracked yet
With dependencies: not tracked yet

Cite

Cite this package

Run in R for the authors' preferred citation:

citation("arcopt")

Format

Waldman, M. (2026). arcopt: Adaptive Regularization using Cubics for Optimization (Version 0.3.0) [Computer software]. https://doi.org/10.32614/CRAN.package.arcopt

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 arcopt version 0.3.0 [Data set]. HJJB, LLC. Data release v2026-08-18. https://doi.org/10.5281/zenodo.21843040

From data release v2026-08-18, which the citation names so these numbers can be found later. More on citing and the projects behind them.

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