R Observatory: Metrics for RcppNLoptExample version 0.0.2

Balamuta, James Joseph

doi:10.5281/zenodo.21843040

RcppNLoptExample

0.0.2Package record

'Rcpp' Package Illustrating Header-Only Access to 'NLopt'

0packages depend

6Kdownloads / year

82.9%test coverage

13/13flavors OK

Overview

About

Maintained by Dirk EddelbuettelCRAN page ↗GitHub ↗Website ↗Issues ↗

An example package which shows use of 'NLopt' functionality from C++ via 'Rcpp' without requiring linking, and relying just on 'nloptr' thanks to the exporting API added there by Jelmer Ypma. This package is a fully functioning, updated, and expanded version of the initial example by Julien Chiquet at https://github.com/jchiquet/RcppArmadilloNLoptExample also containing a large earlier pull request of mine.

Changes in 0.0.2

Updated tolerance in simple test as newer upstream nlopt change behaviour ever so slightly leading to an other spurious failure
Numerous small and standard updates to DESCRIPTION, README.md, badges, and continuous integration setup

From inst/NEWS.Rd in the release

Install

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

install.packages("RcppNLoptExample", 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("eddelbuettel/rcppnloptexample")

Development version from eddelbuettel/rcppnloptexample. 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-rcppnloptexample

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-RcppNLoptExample

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-RcppNLoptExample

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: 2.5 min · r-devel-windows-x86_64

Status changes

OK13 OK2026-08-05
NOTE12 OK, 1 NOTE2026-08-01
OK14 OK2026-04-22
ERROR13 OK, 1 ERROR2026-04-18
OK14 OK2026-03-10

Advisories

none known

How this is measured·How advisories are found

Documentation

In release 0.0.2

READMEYes · 223 wordsVignettesNoNEWSYes · mentions 0.0.2Citation fileNoWebsiteYes

Help pages: 1
Examples that run: 100%1 run in a plain check
Exported functions with examples: 100%
Documented parameters: 100%
Return-value docs: 100%
Help pages citing references: 0%

How these are measured

Downloads

6K

CRAN downloads in the past year

Rank #11,552 · ~17/day · ~503/mo

Releases R versions

Daily download trend is not available in this view yet.

33430 days

92490 days

6K1 year

Compare downloads with other packages →

Also on349 r2u5 autocran

How downloads are counted

Repository

eddelbuettel/rcppnloptexample ↗Account: eddelbuettel

14Stars

3Forks

0Open issues

0Open PRs

0Releases

32Commits

1Commit identities

32 commits · Last activity 2026-07-04 · Default branch at 0.0.2.2, ahead of CRAN 0.0.2 (checked 2026-10-11)

Responsiveness

How these are sampled

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

Stars over time

2025-06-18 · 142026-07-07 · 14

How these are measured

PracticesBeta

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

Checks run against github.com/eddelbuettel/rcppnloptexample on 2026-10-11.

Continuous integration (1)

GitHub Actions

Governance and community (1)

The repository owner accepts GitHub Sponsors

Lint, format, editor (1)

EditorConfig

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

Dependencies

Declared dependencies

4 external dependencies (excludes base and recommended)

Installing RcppNLoptExample adds 2 packages (2 with compiled code, 3.9 MB of source tarballs). Heaviest: nloptr 2.1 MB, Rcpp 1.8 MB.

Depends (1)

R >= 3.0.2

Imports (2)

Rcpp nloptr

LinkingTo (2)

Rcpp nloptr

Suggests (0)

none

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)

Dirk Eddelbuettel

Author, Maintainer since 0.0.1 (2018)

Releases (2)

Pick two releases to compare their code metrics.

R
R 4.6.0 released · 2026-04-24
R
R 4.5.0 released · 2025-04-11
0.0.2Latest
record
2025-03-09 · current release · diff ↗
R
R 4.4.0 released · 2024-04-24
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
R
R 4.0.0 released · 2020-04-24
R
R 3.6.0 released · 2019-04-26
0.0.1
record
2018-10-12
R
R 3.5.0 released · 2018-04-23

Package metadata

First published: 2018-10-12
Total releases: 2 / 8 yrs
License: GPL (>= 2) OSI
Minimum R: ≥ 3.0.2
Download size: 5.2 KB

Cite

Cite this package

Run in R for the authors' preferred citation:

citation("RcppNLoptExample")

Format

Eddelbuettel, D. (2025). RcppNLoptExample: 'Rcpp' Package Illustrating Header-Only Access to 'NLopt' (Version 0.0.2) [Computer software]. https://doi.org/10.32614/CRAN.package.RcppNLoptExample

This package has no citation file, so citation() returns this entry built from DESCRIPTION.

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 RcppNLoptExample version 0.0.2 [Data set]. HJJB, LLC. Data release v2026-10-19. https://doi.org/10.5281/zenodo.21843040

From data release v2026-10-19, which the citation names so these numbers can be found later. More on citing and the projects behind them.

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