R Observatory: Metrics for lbfgs version 1.2.1.2

Balamuta, James Joseph

doi:10.5281/zenodo.21843040

lbfgs

1.2.1.2Package record

Limited-memory BFGS Optimization

6packages dependsuggested by 6

246.8Kdownloads / year

–test coverage

13/13flavors OK

Overview

About

Maintained by Antonio CoppolaCRAN 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. 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-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). 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: 2.8 min · r-devel-windows-x86_64

Status changes

OK13 OK2026-08-05
NOTE12 OK, 1 NOTE2026-08-01
OK14 OK2026-04-22
ERROR13 OK, 1 ERROR2026-04-18
OK14 OK2026-03-10

Advisories

none known

How this is measured·How advisories are found

Documentation

In release 1.2.1.2

READMENoVignettesYes · 1 · staticNEWSNoCitation fileNoWebsitenot declared in DESCRIPTION

Help pages: 2
Examples that run: 100%1 run in a plain check
Exported functions with examples: 100%
Documented parameters: 100%
Return-value docs: 100%
Help pages citing references: 0%

Vignettes (1)

An R Package for Limited-memory BFGS Optimization PDF

How these are measured

Downloads

246.8K

CRAN downloads in the past year

Rank #722 · ~676/day · ~20.6K/mo

Releases R versions

Daily download trend is not available in this view yet.

21.7K30 days

71.7K90 days

246.8K1 year

Compare downloads with other packages →

Also on4.2K r2u2 autocran9.5K conda_forge172 c2d4u

How downloads are counted

Dependencies

Declared dependencies

2 external dependencies (excludes base and recommended)

Installing lbfgs adds 1 package (1 with compiled code, 1.8 MB of source tarballs). Heaviest: Rcpp 1.8 MB.

Depends (0)

none

Imports (2)

Rcppmethods

LinkingTo (1)

Rcpp

Suggests (0)

none

Enhances (0)

none

Dependency license breakdown →

Reverse dependencies

6direct

50indirect

Depends 1 · Imports 5

Suggested by 6

Depends, Imports or LinkingTo, most downloaded first

GauPro splitfngr Dire GCEstim FactorHet hierSDR

Suggests, most downloaded first

optimx regsem PlackettLuce betaARMA psqn ROI.plugin.optimx

How these are counted

Code & Tests

Datasets

People & History

People (7)

Antonio Coppola

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

Releases (3)

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
R
R 4.4.0 released · 2024-04-24
R
R 4.3.0 released · 2023-04-21
1.2.1.2Latest
record
2022-06-23 · current release · diff ↗
1.2.1.1
record
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
record
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

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 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 lbfgs version 1.2.1.2 [Data set]. HJJB, LLC. Data release v2026-10-24. https://doi.org/10.5281/zenodo.21843040

From data release v2026-10-24, which the citation names so these numbers can be found later. More on citing and the projects behind them.

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