R Observatory: Metrics for ucminfcpp version 1.0.0

Balamuta, James Joseph

doi:10.5281/zenodo.21843040

ucminfcpp

1.0.0

'C++' Reimplementation of the 'ucminf' Unconstrained Nonlinear Optimizer

1packages depend

1.6Kdownloads / year

80.1%test coverage

13/13checks pass

Overview

About

Maintained by Angel Luis Robles FernándezFirst published 2026-04-221 releasesCRAN page ↗GitHub ↗

A modern 'C++17/ reimplementation of the 'UCMINF/ algorithm for unconstrained nonlinear optimization (Nielsen and Mortensen, 2011, doi:10.32614/CRAN.package.ucminf), offering full API compatibility with the original 'ucminf' R package but developed independently. The optimizer core has been rewritten in 'C' with a modern header-only 'C++17' interface, zero-allocation line search, and an 'Rcpp' interface. The goal is numerical equivalence with improved performance, reproducibility, and extensibility. Includes extensive test coverage, performance regression tests, and compatibility checks against 'ucminf'. This package is not affiliated with the original maintainers but acknowledges their authorship of the algorithm and the original R interface.

Install

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

install.packages("ucminfcpp", 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("alrobles/ucminfcpp")

Development version from alrobles/ucminfcpp. 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-ucminfcpp

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-ucminfcpp

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-ucminfcpp

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 0.81

80.1%

Coverage · measured lines

100%

Documentation · exports

1

Dependencies · direct

Check history

OK2026-08-04
13 OK · 0 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE
NOTE2026-08-01
12 OK · 1 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE
OK2026-04-25
10 OK · 0 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE
ERROR2026-04-23
6 OK · 0 NOTE · 0 WARNING · 1 ERROR · 0 FAILURE

Documentation

READMEYes · 321 wordsVignettesNopkgdown siteNoNEWSNoCode of conductNoContributing guideNo

Examples that run: 100%
Documented parameters: 100%
Return-value docs: 100%
References docs: 14%

Downloads

1.6K

CRAN downloads in the past year

Rank #8,241 · ~4/day · ~130/mo

Releases R versions

Daily download trend is not available in this view yet.

23430 days

1.1K90 days

1.6K1 year

Compare downloads with other packages →

Also on116 r2u13 autocran

Repository

GitHub ↗ alrobles/ucminfcpp

0Stars

0Forks

0Open issues

0Open PRs

0Releases

Last activity 2026-05-21

Repository practices

Upstream repositoryBeta

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

Checks run against github.com/alrobles/ucminfcpp on 2026-08-09.

Continuous integration (1)

GitHub Actions

CRAN release process (2)

cran-comments.mdCRAN-SUBMISSION

Docs source (1)

README.Rmd

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: copilot on 2026-03-16

copilot

Most recent: copilot on 2026-03-16

Evidence

copilot: on 2026-03-16 · evidence A, PR · sole bot-author seen

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

Dependencies

Declared dependencies

5 external dependencies (excludes base and recommended)

Depends (1)

R >= 3.5.0

Imports (1)

Rcpp

LinkingTo (1)

Rcpp

Suggests (3)

testthat ucminf microbenchmark

Enhances (0)

none

Dependency license breakdown →

Reverse dependencies

1direct

0indirect

xsdm xsdm

Code & Tests

People & History

People (4)

Maintainer (1)

Angel Luis Robles Fernández

Author, Maintainer

Authors (1)

Angel Luis Robles Fernández

Author, Maintainer

Contributors (2)

Rex Brown

Contributor

K Hervé Dakpo

Contributor

Copyright holders (1)

Hans Bruun Nielsen

Copyright holder

Package Timeline

1 release. R releases are shown for context.

R
R 4.6.0 released · 2026-04-24
1.0.0Latest
2026-04-22 · current release
R
R 4.5.0 released · 2025-04-11

Package metadata

First published: 2026-04-22
Total releases: 1 / 1 yrs
License: GPL (>= 3) OSI
Minimum R: ≥ 3.5.0
Download size: not tracked yet
Installed size: not tracked yet
With dependencies: not tracked yet

Cite

Cite this package

Run in R for the authors' preferred citation:

citation("ucminfcpp")

Format

Robles Fernández, A. L., Brown, R., Dakpo, K. H., & Nielsen, H. B. (2026). ucminfcpp: 'C++' Reimplementation of the 'ucminf' Unconstrained Nonlinear Optimizer (Version 1.0.0) [Computer software]. https://doi.org/10.32614/CRAN.package.ucminfcpp

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 ucminfcpp version 1.0.0 [Data set]. HJJB, LLC. Data release v2026-08-13. https://doi.org/10.5281/zenodo.21843040

From data release v2026-08-13, which the citation names so these numbers can be found later. More on citing and the projects behind them.

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