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vntrs

0.2.1

Variable Neighborhood Trust Region Search

0packages depend
2.7Kdownloads / year
80.3%test coverage
13/13checks pass

Overview

About
Maintained by Lennart OelschlägerFirst published 2021-10-184 releasesCRAN page ↗GitHub ↗

Implements the variable neighborhood trust region search (VNTRS) algorithm for nonlinear global optimization, following 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.

Install

Health

CRAN checks
13OK
Slowest check: 4.0 min · r-devel-windows-x86_64
Code health
Yes
Tests · ratio 1.79
80.3%
Coverage · measured lines
100%
Documentation · exports
3
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
  • OK2026-06-09
    13 OK · 0 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE
  • ERROR2026-06-08
    12 OK · 0 NOTE · 0 WARNING · 1 ERROR · 0 FAILURE
  • OK2026-04-22
    14 OK · 0 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE
Show 4 earlier snapshots
  • ERROR2026-04-18
    13 OK · 0 NOTE · 0 WARNING · 1 ERROR · 0 FAILURE
  • OK2026-04-16
    14 OK · 0 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE
  • NOTE2026-03-28
    13 OK · 1 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE
  • OK2026-03-10
    14 OK · 0 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE

Documentation

Documentation
READMEYes · 245 wordsVignettesNopkgdown siteNoNEWSYes · 100% structuredCode of conductNoContributing guideNo
Examples that run
100%
Documented parameters
79%
Return-value docs
100%
References docs
50%

Downloads

2.7K
CRAN downloads in the past year
Rank #18,133 · ~7/day · ~221/mo
Daily download trend is not available in this view yet.
11630 days
59890 days
2.7K1 year
Compare downloads with other packages →
Also on377 r2u9 autocran

Repository

Repository
0Stars
0Forks
0Open issues
0Open PRs
0Releases
License GPL-3.0 · Last activity 2026-05-07

Repository practices

Upstream repositoryBeta

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

Checks run against github.com/loelschlaeger/vntrs on 2026-08-16.

Continuous integration (1)
GitHub Actions
CRAN release process (2)
cran-comments.mdCRAN-SUBMISSION
Docs source (1)
README.Rmd
Lint, format, editor (1)
RStudio project
Show all practices
Coverage (1)
Codecov
Governance and community (1)
Issue templates
How this is detected·Detection ruleset v1 (2026-07-18)

Dependencies

Declared dependencies
6 external dependencies (excludes base and recommended)
Depends (0)
none
LinkingTo (2)
Suggests (1)
Enhances (0)
none
Reverse dependencies
0direct
0indirect

Nothing depends on this yet.

Code & Tests

People & History

People (1)
Maintainer (1)
Author, Maintainer
Authors (1)
Author, Maintainer
Listed in earlier versions (1)
no longer listed · 0.1.0 to 0.2.1
Package Timeline

4 releases. Pick two to compare their code metrics. R releases are shown for context.

  • 0.2.1Latest
    2026-05-07 · current release · diff ↗
  • R
    R 4.6.0 released · 2026-04-24
  • 0.2.0
    2025-10-25 · diff ↗
  • R
    R 4.5.0 released · 2025-04-11
  • R
    R 4.4.0 released · 2024-04-24
  • 0.1.1
    2023-12-21 · diff ↗
  • R
    R 4.3.0 released · 2023-04-21
  • R
    R 4.2.0 released · 2022-04-22
  • 0.1.0
    2021-10-18
  • R
    R 4.1.0 released · 2021-05-18

Package metadata

First published
2021-10-18
Total releases
4 / 5 yrs
License
GPL-3 OSI
Download size
28 KB
Installed size
not tracked yet
With dependencies
not tracked yet

Cite

Cite this package

Run in R for the authors' preferred citation:

citation("vntrs")
Oelschläger, L. (2026). vntrs: Variable Neighborhood Trust Region Search (Version 0.2.1) [Computer software]. https://doi.org/10.32614/CRAN.package.vntrs

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.

APA

Balamuta, J. J. (2026). R Observatory: Metrics for vntrs version 0.2.1 [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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