R Observatory: Metrics for vntrs version 0.3.0

Balamuta, James Joseph

doi:10.5281/zenodo.21843040

vntrs

0.3.0Package record

Variable Neighborhood Trust Region Search

0packages depend

3Kdownloads / year

82.6%test coverage

13/13flavors OK

Overview

About

Maintained by Lennart OelschlägerCRAN page ↗GitHub ↗Website ↗Issues ↗

Implements a variable neighborhood trust region search (VNTRS) algorithm for nonlinear global optimization, based on Bierlaire et al. (2009) "A Heuristic for Nonlinear Global Optimization" doi:10.1287/ijoc.1090.0343. The method combines neighborhood exploration with a trust-region framework to search the solution space efficiently. It can terminate a local search early when the iterates converge toward a previously visited local optimum or when further improvement within the current region is unlikely. The algorithm can also be used to identify multiple local optima.

Changes in 0.3.0

Reorganized optional arguments of vntrs().
Renamed argument tolerance to identical_tolerance to clarify that it identifies identical optima.
Added argument scale. Its default "relative" applies scale-free distance, objective-gap, duplicate-optimum, and gradient criteria; "absolute" applies the corresponding unscaled measures used by Bierlaire et al. (2009).
Made duplicate-optimum detection scale-free by default, while retaining an absolute comparison through scale = "absolute".
Added arguments known_optimum_radius and interruption_gradient_tolerance to control the distance and gradient thresholds for premature interruption.
Added argument evaluation_limit to impose a maximum number of objective-function calls.

Show all changes in 0.3.0Hide the rest of the changes in 0.3.0

Now samples initialization points across finite parameter bounds. init_min and init_max remain the fallback for parameters without finite bounds.
Expanded the parameter documentation with explanations and recommended values.
Improved initialization when the objective is non-finite at a randomly generated starting point.
Now sorts returned optima from best to worst by objective value.
Reduced objective-function evaluations by delaying numerical gradients until a trial step is accepted and by reusing available values and gradients.

From NEWS.md in the release

Install

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

install.packages("vntrs", 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("loelschlaeger/vntrs")

Development version from loelschlaeger/vntrs. 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-vntrs

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-vntrs

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-vntrs

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: 3.6 min · r-devel-windows-x86_64

Status changes

OK13 OK2026-08-04
NOTE12 OK, 1 NOTE2026-08-01
OK13 OK2026-06-09
ERROR12 OK, 1 ERROR2026-06-08
OK14 OK2026-04-22

Show 4 earlier changesHide 4 earlier changes

ERROR13 OK, 1 ERROR2026-04-18
OK14 OK2026-04-16
NOTE13 OK, 1 NOTE2026-03-28
OK14 OK2026-03-10

Advisories

none known

How this is measured·How advisories are found

Documentation

In release 0.3.0

READMEYes · 344 wordsVignettesNoNEWSYes · 100% structured · mentions 0.3.0Citation fileNoWebsiteYes · pkgdown

Help pages: 2 (1 internal)includes a package overview page
Examples that run: 100%2 run in a plain check
Exported functions with examples: 100%
Documented parameters: 83%
Return-value docs: 100%
Help pages citing references: 50%

How these are measured

Downloads

3K

CRAN downloads in the past year

Rank #13,356 · ~8/day · ~253/mo

Releases R versions

Daily download trend is not available in this view yet.

31430 days

84990 days

3K1 year

Compare downloads with other packages →

Also on386 r2u4 autocran

How downloads are counted

Repository

loelschlaeger/vntrs ↗Account: loelschlaeger

0Stars

0Forks

0Open issues

0Open PRs

0Releases

License file reads as GPL-3.0 · Last activity 2026-09-03

Responsiveness

not measured

How these are measured

PracticesBeta

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

Checks run against github.com/loelschlaeger/vntrs 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

Governance and community (2)

Issue templatesPR template

Docs source (4)

README.Rmdpkgdown

GitHub Pages site last deployed 2026-09-03 · The repository has a site deploy workflow

pkgdown site last built 2026-09-03

Coverage (1)

Coverage reporting (Codecov)

Show all practicesHide 2 practices

CRAN release process (2)

cran-comments.mdCRAN-SUBMISSION

Lint, format, editor (1)

RStudio project

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

Dependencies

Declared dependencies

6 external dependencies (excludes base and recommended)

Installing vntrs adds 117 packages (55 with compiled code, 86 MB of source tarballs). Heaviest: stringi 11 MB, ggplot2 6.0 MB, bslib 5.6 MB.

Depends (0)

none

Imports (3)

checkmate oeli Rcpp

LinkingTo (2)

Rcpp RcppArmadillo

Suggests (1)

testthat

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)

Lennart Oelschläger

Author, Maintainer since 0.1.0 (2021)

Releases (5)

Pick two releases to compare their code metrics.

0.3.0Latest
record
2026-09-03 · current release · diff ↗
0.2.1
record
2026-05-07 · diff ↗
R
R 4.6.0 released · 2026-04-24
0.2.0
record
2025-10-25 · diff ↗ ·
removed 1 export
check_controls
R
R 4.5.0 released · 2025-04-11
R
R 4.4.0 released · 2024-04-24
0.1.1
record
2023-12-21 · diff ↗ ·
added 1 export
check_controls
R
R 4.3.0 released · 2023-04-21
R
R 4.2.0 released · 2022-04-22
0.1.0
record
2021-10-18
R
R 4.1.0 released · 2021-05-18

Package metadata

First published: 2021-10-18
Total releases: 5 / 5 yrs
License: GPL-3 OSI
Download size: 212 KB

Cite

Cite this package

Run in R for the authors' preferred citation:

citation("vntrs")

Format

Oelschläger, L. (2026). vntrs: Variable Neighborhood Trust Region Search (Version 0.3.0) [Computer software]. https://doi.org/10.32614/CRAN.package.vntrs

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 vntrs version 0.3.0 [Data set]. HJJB, LLC. Data release v2026-10-18. https://doi.org/10.5281/zenodo.21843040

From data release v2026-10-18, which the citation names so these numbers can be found later. More on citing and the projects behind them.

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