R Observatory: Metrics for lbfgs version 1.2.1.2

Balamuta, James Joseph

doi:10.5281/zenodo.21843040

lbfgs

1.2.1.2

Limited-memory BFGS Optimization

12packages depend

212.5Kdownloads / year

–test coverage

13/13checks pass

Overview

About

Maintained by Antonio CoppolaFirst published 2014-08-313 releasesCRAN page ↗

A wrapper built around the libLBFGS optimization library by Naoaki Okazaki. The lbfgs package implements both the Limited-memory Broyden-Fletcher-Goldfarb-Shanno (L-BFGS) and the Orthant-Wise Quasi-Newton Limited-Memory (OWL-QN) optimization algorithms. The L-BFGS algorithm solves the problem of minimizing an objective, given its gradient, by iteratively computing approximations of the inverse Hessian matrix. The OWL-QN algorithm finds the optimum of an objective plus the L1-norm of the problem's parameters. The package offers a fast and memory-efficient implementation of these optimization routines, which is particularly suited for high-dimensional problems.

Install

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

install.packages("lbfgs", repos = "https://cloud.r-project.org/")

Installs the current CRAN release. Prebuilt binaries on Windows and macOS.

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-lbfgs

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-lbfgs

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-lbfgs

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

Health

CRAN checks

13OK

Slowest check: 2.9 min · r-devel-windows-x86_64

Code health

None

Tests · ratio 0.00

not tracked

Coverage

100%

Documentation · exports

2

Dependencies · direct

Check history

OK2026-08-05
13 OK · 0 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE
NOTE2026-08-01
12 OK · 1 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE
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

READMENoVignettesYes · dynamicpkgdown siteNoNEWSNoCode of conductNoContributing guideNo

Examples that run: 100%
Documented parameters: 100%
Return-value docs: 100%
References docs: 0%

Downloads

212.5K

CRAN downloads in the past year

Rank #700 · ~582/day · ~17.7K/mo

Releases R versions

Daily download trend is not available in this view yet.

24.5K30 days

77.7K90 days

212.5K1 year

Compare downloads with other packages →

Also on2.7K r2u16 autocran6.2K conda_forge89 c2d4u

Dependencies

Declared dependencies

2 external dependencies (excludes base and recommended)

Depends (0)

none

Imports (2)

Rcppmethods

LinkingTo (1)

Rcpp

Suggests (0)

none

Enhances (0)

none

Dependency license breakdown →

Reverse dependencies

12direct

50indirect

hierSDR Dire FactorHet GCEstim GauPro splitfngr PlackettLuce ROI.plugin.optimx betaARMA optimx psqn regsem

Code & Tests

People & History

People (7)

Maintainer (1)

Antonio Coppola

Author, Maintainer, Copyright holder

Authors (3)

Antonio Coppola

Author, Maintainer, Copyright holder

Naoaki Okazaki

Author, Copyright holder

Brandon Stewart

Author, Copyright holder

Contributors (4)

David Ardia

Contributor, Copyright holder

Dirk Eddelbuettel

Contributor, Copyright holder

Katharine Mullen

Contributor, Copyright holder

Jorge Nocedal

Contributor, Copyright holder

Copyright holders (7)

Antonio Coppola

Author, Maintainer, Copyright holder

Naoaki Okazaki

Author, Copyright holder

Brandon Stewart

Author, Copyright holder

David Ardia

Contributor, Copyright holder

Dirk Eddelbuettel

Contributor, Copyright holder

Katharine Mullen

Contributor, Copyright holder

Jorge Nocedal

Contributor, Copyright holder

Package Timeline

3 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
R
R 4.4.0 released · 2024-04-24
R
R 4.3.0 released · 2023-04-21
1.2.1.2Latest
2022-06-23 · current release · diff ↗
1.2.1.1
2022-05-23 · diff ↗
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
R
R 3.5.0 released · 2018-04-23
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
1.2.1
2014-08-31
R
R 3.1.0 released · 2014-04-10

Package metadata

First published: 2014-08-31
Total releases: 3 / 12 yrs
License: GPL (>= 2) OSI
Bundled data: 1.9 MB / 2 files
Download size: 2.1 MB
Installed size: not tracked yet
With dependencies: not tracked yet

Appears in task views

Optimization and Mathematical Programming

Cite

Cite this package

Run in R for the authors' preferred citation:

citation("lbfgs")

Format

Coppola, A., Ardia, D., Eddelbuettel, D., Mullen, K., Nocedal, J., Okazaki, N., & Stewart, B. (2022). lbfgs: Limited-memory BFGS Optimization (Version 1.2.1.2) [Computer software]. https://doi.org/10.32614/CRAN.package.lbfgs

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.

Format

APA

Balamuta, J. J. (2026). R Observatory: Metrics for lbfgs version 1.2.1.2 [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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