R Observatory: Metrics for nloptr version 2.2.1

Balamuta, James Joseph

doi:10.5281/zenodo.21843040

nloptr

2.2.1

R Interface to NLopt

156packages dependsuggested by 30

5.9Mdownloads / year

97.6%test coverage

13/13flavors OK

Overview

About

Maintained by Aymeric StammCRAN page ↗GitHub ↗Website ↗Issues ↗

Solve optimization problems using an R interface to NLopt. NLopt is a free/open-source library for nonlinear optimization, providing a common interface for a number of different free optimization routines available online as well as original implementations of various other algorithms. See https://nlopt.readthedocs.io/en/latest/NLopt_Algorithms/ for more information on the available algorithms. Building from included sources requires 'CMake'. On Linux and 'macOS', if a suitable system build of NLopt (2.7.0 or later) is found, it is used; otherwise, it is built from included sources via 'CMake'. On Windows, NLopt is obtained through 'rwinlib' for 'R <= 4.1.x' or grabbed from the appropriate toolchain for 'R >= 4.2.0'.

Changes in 2.2.1

Updates included nlopt sources to v2.10.0 (#194, @astamm).
Fix clang-UBSAN memory leak issue (#189, @astamm).
Add link to blog post about nloptr v2.2.0.
More CI to build against all versions of nlopt>=2.7.0.
Use NLOPT_LD_LBFGS in place of NLOPT_LD_LBFGS_NOCEDAL when the latter is

not available (in nlopt v2.9.x).

Add checks for x0 and eval_f in nloptr (#191, @astamm).

From NEWS.md in the release

Install

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

install.packages("nloptr", 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("astamm/nloptr")

Development version from astamm/nloptr. 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-nloptr

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-nloptr

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-nloptr

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: 3.2 min · r-devel-windows-x86_64

Status changes

OK13 OK2026-08-05
NOTE12 OK, 1 NOTE2026-08-01
OK13 OK2026-06-27
ERROR12 OK, 1 ERROR2026-06-24
OK14 OK2026-03-10

Advisories

none known

How this is measured·How advisories are found

Documentation

In release 2.2.1

READMEYes · 495 wordsVignettesYes · 1 · dynamicNEWSYes · 100% structured · mentions 2.2.1Citation fileYes · software entry onlyWebsiteYes · pkgdown

Help pages: 26 (1 internal)includes a package overview page
Examples that run: 100%23 run in a plain check
Exported functions with examples: 92%
Documented parameters: 82%
Return-value docs: 96%
Help pages citing references: 73%

Vignettes (1)

nloptr HTML

How these are measured

Downloads

5.9M

CRAN downloads in the past year

Rank #127 · ~16.3K/day · ~495.1K/mo

Releases R versions

Daily download trend is not available in this view yet.

445K30 days

1.4M90 days

5.9M1 year

Compare downloads with other packages →

Also on89.1K r2u130 autocran242.6K conda_forge3.3K c2d4u

How downloads are counted

Repository

astamm/nloptr ↗Account: astamm

117Stars

35Forks

10Open issues

4Open PRs

8Releases

736Commits

15Commit identities

736 commits · Last activity 2025-08-13 · 0% stars, 30d · Default branch at 2.2.1.9000, ahead of CRAN 2.2.1 (checked 2026-10-11) · Discussions: 1 post

Responsiveness

How these are sampled

PRs merged (all time): 69%
Median days to close, 50 most recently updated closed issues: 8
Median days to close, 50 most recently updated closed PRs: 2

Stars over time

2026-07-14 · 1152026-09-11 · 117

How these are measured

PracticesBeta

13 development-tooling and community-health practices detected across 6 families in the upstream repository

Checks run against github.com/astamm/nloptr on 2026-10-11.

Continuous integration (2)

GitHub ActionsR CMD check workflow

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

Docs source (4)

README.Rmdpkgdown

GitHub Pages site last deployed 2025-08-13 · The repository has a site deploy workflow

pkgdown site last built 2025-08-13

Coverage (1)

Coverage reporting (Codecov)

CRAN release process (2)

cran-comments.mdrevdep/

Show all practicesHide 2 practices

Lint, format, editor (3)

AirVS CodeRStudio project

Git structural (1)

.gitattributes

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

Dependencies

Declared dependencies

4 external dependencies (excludes base and recommended)

Installing nloptr adds no packages beyond those that come with R.

Depends (0)

none

Imports (0)

none

LinkingTo (0)

none

Suggests (4)

knitr rmarkdown covr tinytest

Enhances (0)

none

Dependency license breakdown →

Reverse dependencies

156direct

1,580indirect

Depends 11 · Imports 145 · LinkingTo 11

Suggested by 30

Show the 48 most downloaded dependentsHide the 48 most downloaded dependents

Depends, Imports or LinkingTo, most downloaded first

and 108 more dependents and 30 packages that suggest it on CRAN ↗

How these are counted

Code & Tests

People & History

People (13)

Aymeric Stamm

Contributor, Maintainer since 2.0.0 (2022) · added in 2.0.0

Steven G. Johnson

Author

author of the NLopt C library

Jelmer Ypma

Author

Avraham Adler

Contributor · added in 1.2.2

Hans W. Borchers

Contributor · added in 1.0.0

Julien Chiquet

Contributor · added in 1.2.2

Xiongtao Dai

Contributor · added in 2.0.0

Dirk Eddelbuettel

Contributor · added in 1.0.4

Kurt Hornik

Contributor · added in 1.2.2

build process on multiple OS

Mikael Jagan

Contributor · added in 2.2.0

Tomas Kalibera

Contributor · added in 2.2.0

Show 2 more contributorsHide 2 contributors

Jeroen Ooms

Contributor · added in 2.0.0

Brian Ripley

Contributor · added in 1.2.2

build process on multiple OS

Previously maintained by Jelmer Ypma (0.8.2 to 1.2.2.3).

Listed in earlier versions (2)

Steven G.

no longer listed · 1.2.2 to 2.2.1

Hans W.

no longer listed · 1.2.2 to 2.2.1

Releases (28)

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
2.2.1Latest
record
2025-03-17 · current release · diff ↗
2.2.0
record
2025-03-12 · diff ↗
2.1.1
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2024-06-25 · diff ↗
2.1.0
record
2024-06-19 · diff ↗
R
R 4.4.0 released · 2024-04-24
R
R 4.3.0 released · 2023-04-21
2.0.3
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2022-05-26 · diff ↗
2.0.2
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2022-05-19 · diff ↗
2.0.1
record
2022-05-03 · diff ↗
R
R 4.2.0 released · 2022-04-22
2.0.0
record
2022-01-26 · diff ↗
1.2.2.3
record
2021-11-02 · diff ↗
R
R 4.1.0 released · 2021-05-18
1.2.2.2
record
2020-07-02 · diff ↗

Show 29 earlier eventsHide 29 earlier events

R
R 4.0.0 released · 2020-04-24
1.2.2.1
record
2020-03-11 · diff ↗
1.2.2
record
2020-02-29 · diff ↗ ·
added 1 export
ccsaq
R
R 3.6.0 released · 2019-04-26
1.2.1
record
2018-10-03 · diff ↗
1.2.0
record
2018-09-30 · diff ↗
R
R 3.5.0 released · 2018-04-23
1.0.4
record
2017-08-22 · diff ↗ ·
added 1 export
nloptr.get.default.options
R
R 3.4.0 released · 2017-04-21
R
R 3.3.0 released · 2016-05-03
R
R 3.2.0 released · 2015-04-16
R
R 3.1.0 released · 2014-04-10
1.0.0
record
2014-02-16 · diff ↗ ·
added 20 exports
nl.grad, nl.jacobian, nl.opts, slsqp, cobyla, bobyqa, newuoa, direct, directL, neldermead, sbplx, lbfgs, tnewton, mma, varmetric, mlsl, crs2lm, isres, stogo, auglag
0.9.6
record
2013-11-19 · diff ↗
0.9.5
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2013-11-13 · diff ↗
0.9.3
record
2013-07-31 · diff ↗
0.9.1
record
2013-04-29 · diff ↗
R
R 3.0.0 released · 2013-04-03
R
R 2.15.0 released · 2012-03-30
0.8.9
record
2011-11-23 · diff ↗
0.8.8
record
2011-11-02 · diff ↗
R
R 2.14.0 released · 2011-10-31
0.8.7
record
2011-10-27 · diff ↗
0.8.6
record
2011-10-24 · diff ↗
0.8.5
record
2011-09-05 · diff ↗
0.8.4
record
2011-08-13 · diff ↗ ·
added 1 export
nloptr.print.options
0.8.3
record
2011-07-29 · diff ↗ ·
added 1 export
check.derivatives
0.8.2
record
2011-06-22
R
R 2.13.0 released · 2011-04-13

Package metadata

First published: 2011-06-22
Total releases: 28 / 15 yrs
License: LGPL (>= 3) OSI
Download size: 2.1 MB

Appears in task views

Optimization and Mathematical Programming

Cite

Cite this package

Run in R for the authors' entry:

citation("nloptr")

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

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 nloptr version 2.2.1 [Data set]. HJJB, LLC. Data release v2026-10-17. https://doi.org/10.5281/zenodo.21843040

From data release v2026-10-17, which the citation names so these numbers can be found later. More on citing and the projects behind them.

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