lbfgsb3c

2024-3.5

Limited Memory BFGS Minimizer with Bounds on Parameters with optim() 'C' Interface

15packages depend

90.1Kdownloads / year

73.9%test coverage

13/13checks pass

Overview

About

Maintained by Matthew L FidlerFirst published 2018-10-199 releasesCRAN page ↗GitHub ↗

Interfacing to Nocedal et al. L-BFGS-B.3.0 (See http://users.iems.northwestern.edu/~nocedal/lbfgsb.html) limited memory BFGS minimizer with bounds on parameters. This is a fork of 'lbfgsb3'. This registers a 'R' compatible 'C' interface to L-BFGS-B.3.0 that uses the same function types and optimization as the optim() function (see writing 'R' extensions and source for details). This package also adds more stopping criteria as well as allowing the adjustment of more tolerances.

Install

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

install.packages("lbfgsb3c", 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("nlmixr2/lbfgsb3c")

Development version from nlmixr2/lbfgsb3c. 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-lbfgsb3c

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-lbfgsb3c

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-lbfgsb3c

RPMs auto-built from CRAN on openSUSE OBS (Tumbleweed).

Health

CRAN checks

13OK

Slowest check: 2.4 min · r-oldrel-windows-x86_64

Code health

Yes

Tests · ratio 1.09

73.9%

Coverage · measured lines

100%

Documentation · exports

Dependencies · direct

Check history

OK2026-04-22
14 OK · 0 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE
ERROR2026-04-18
13 OK · 0 NOTE · 0 WARNING · 1 ERROR · 0 FAILURE
OK2026-03-10
14 OK · 0 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE

Documentation

READMEYes · 81 wordsVignettesYes · dynamicpkgdown siteNoNEWSYes · 100% structuredCode of conductNoContributing guideNo

Examples that run: 100%
Documented parameters: 100%
Return-value docs: 100%
References docs: 50%

Downloads

90.1K

CRAN downloads in the past year

Rank #1,495 · ~247/day · ~7.5K/mo

Releases R versions

Daily download trend is not available in this view yet.

4.9K30 days

20.4K90 days

90.1K1 year

Compare downloads with other packages →

Also on1.3K r2u29 autocran18.8K conda_forge73 c2d4u

Repository

GitHub ↗ nlmixr2/lbfgsb3c

1Stars

1Forks

1Open issues

0Open PRs

4Releases

135Commits

5Contributors

135 commits · Last activity 2024-09-17

Stars over time

2025-02-17 · 12026-07-07 · 1

Repository practices

Upstream repositoryBeta

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

Checks run against github.com/nlmixr2/lbfgsb3c on 2026-07-19.

Continuous integration (1)

GitHub Actions

CRAN release process (2)

cran-comments.mdCRAN-SUBMISSION

Coverage (1)

Codecov

How this is detected·Detection ruleset v1 (2026-07-18)

Dependencies

Declared dependencies

12 external dependencies (excludes base and recommended)

Depends (1)

R >= 3.6

Imports (3)

Rcpp numDerivmethods

LinkingTo (2)

Rcpp RcppArmadillo

Suggests (8)

knitr microbenchmark optimx pkgbuild RcppArmadillo rmarkdown testthat adagio

Enhances (0)

none

Dependency license breakdown →

Reverse dependencies

15direct

15indirect

GCEstim calibrar causalOT dicepro glinvci nlmixr2est optimizeR tseriesTARMA nlmixr2est ROI.plugin.optimx blackbox flexFitR metafor optimParallel optimx psqn

Code & Tests

People & History

People (6)

Maintainer (1)

Matthew L Fidler

Author, Maintainer

Authors (6)

Author, Maintainer

Author

Author

Author

Author

Author

Listed in earlier versions (3)

Fidler

no longer listed · 2018-2.13 to 2024-3.5

Morales

no longer listed · 2018-2.13 to 2024-3.5

Nash

no longer listed · 2018-2.13 to 2024-3.5

Package Timeline

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

R
R 4.6.0 released · 2026-04-24
R
R 4.5.0 released · 2025-04-11
2024-3.5Latest
2024-09-18 · current release · diff ↗
R
R 4.4.0 released · 2024-04-24
2024-3.4
2024-04-04 · diff ↗
2024-3.3
2024-04-01 · diff ↗
2020-3.3
2023-11-28 · diff ↗
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
2020-3.2
2020-03-03 · diff ↗
2020-2.3
2020-02-10 · diff ↗
2019-11.26
2019-11-30 · diff ↗
R
R 3.6.0 released · 2019-04-26
2018-2.13-1
2018-12-01 · diff ↗

Show 2 earlier events

2018-2.13
2018-10-19
R
R 3.5.0 released · 2018-04-23

Package metadata

First published: 2018-10-19
Total releases: 9 / 8 yrs
License: GPL-2 OSI
Minimum R: ≥ 3.6
Download size: 120 KB
Installed size: not tracked yet
With dependencies: not tracked yet

Appears in task views

Optimization and Mathematical Programming

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