R Observatory: Metrics for L0Learn version 2.1.0

Balamuta, James Joseph

doi:10.5281/zenodo.21843040

L0Learn

2.1.0Package record

Fast Algorithms for Best Subset Selection

3packages depend

16.9Kdownloads / year

–test coverage

0/13flavors OK

Overview

About

Maintained by Hussein HazimehCRAN page ↗GitHub ↗Website ↗Issues ↗

Highly optimized toolkit for approximately solving L0-regularized learning problems (a.k.a. best subset selection). The algorithms are based on coordinate descent and local combinatorial search. For more details, check the paper by Hazimeh and Mazumder (2020) doi:10.1287/opre.2019.1919.

Install

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

install.packages("L0Learn", 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("hazimehh/L0Learn")

Development version from hazimehh/L0Learn. 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-l0learn

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-L0Learn

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-L0Learn

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

13NOTE

Check messages

NOTERd filesr-devel-linux-x86_64-debian-clang, r-devel-linux-x86_64-debian-gcc, r-devel-linux-x86_64-fedora-clang, r-devel-linux-x86_64-fedora-gcc, r-devel-windows-x86_64, r-oldrel-macos-arm64, r-oldrel-macos-x86_64, r-oldrel-windows-x86_64, r-patched-linux-x86_64, r-release-linux-x86_64, r-release-macos-arm64, r-release-macos-x86_64, r-release-windows-x86_64

checkRd: (-1) GenSyntheticLogistic.Rd:46: Lost braces; missing escapes or markup?
    46 | 3) Every coordinate yi of the outcome vector y exists in {-1, 1}^n is sampled 
       |                                                          ^
checkRd: (-1) L0Learn-package.Rd:20: Lost braces in \itemize; meant \describe ?
checkRd: (-1) L0Learn-package.Rd:21: Lost braces in \itemize; meant \describe ?
checkRd: (-1) L0Learn-package.Rd:22: Lost braces in \itemize; meant \describe ?
checkRd: (-1) L0Learn-package.Rd:23: Lost braces in \itemize; meant \describe ?
checkRd: (-1) L0Learn-package.Rd:24: Lost braces in \itemize; meant \describe ?
checkRd: (-1) L0Learn-package.Rd:25: Lost braces in \itemize; meant \describe ?

CRAN check page ↗

Slowest check: 8.2 min · r-oldrel-windows-x86_64

Status changes

NOTE13 NOTENow
NOTE14 NOTE2026-04-22
ERROR13 NOTE, 1 ERROR2026-04-18
NOTE14 NOTE2026-03-10

Advisories

none known

How this is measured·How advisories are found

Documentation

In release 2.1.0

READMENoVignettesYes · 1 · dynamicNEWSNoCitation fileNoWebsiteYes

Help pages: 11includes a package overview page
Examples that run: 100%7 run in a plain check
Exported functions with examples: 100%
Documented parameters: 100%
Return-value docs: 100%
Help pages citing references: 9%

Vignettes (1)

L0Learn Vignette

How these are measured

Downloads

16.9K

CRAN downloads in the past year

Rank #2,544 · ~46/day · ~1.4K/mo

Releases R versions

Daily download trend is not available in this view yet.

2.3K30 days

6.3K90 days

16.9K1 year

Compare downloads with other packages →

Also on633 r2u3 autocran91 c2d4u

How downloads are counted

Repository

hazimehh/l0learn ↗Account: hazimehh

108Stars

33Forks

4Open issues

1Open PRs

0Releases

588Commits

5Commit identities

machine-learningsparse-regressioncompressed-sensingfeature-selectionregularizationsparse-modelingl0-regularizationl0learn

588 commits · Last activity 2023-09-14 · +0.9% stars, 30d · The default branch showed an older version (2.0.5) than CRAN on 2026-10-21

Responsiveness

How these are sampled

PRs merged (all time): 96%
Median days to close, 50 most recently updated closed issues: 3
Median days to close, 50 most recently updated closed PRs: 0

Stars over time

2026-07-14 · 1052026-10-18 · 108

How these are measured

PracticesBeta

1 development-tooling and community-health practice detected across 1 family in the upstream repository

Checks run against github.com/hazimehh/l0learn on 2026-10-21.

Continuous integration (1)

Travis CI (config file)

How this is detected·Detection ruleset v4 (2026-10-20)

Dependencies

Declared dependencies

11 external dependencies (excludes base and recommended)

Installing L0Learn adds 24 packages (13 with compiled code, 28 MB of source tarballs). Heaviest: stringi 11 MB, ggplot2 6.0 MB, Rcpp 1.8 MB.

Depends (1)

R >= 3.3.0

Imports (6)

RcppMatrixmethodsggplot2 reshape2MASS

LinkingTo (2)

Rcpp RcppArmadillo

Suggests (6)

knitr rmarkdown testthat pracma raster covr

Enhances (0)

none

Dependency license breakdown →

Reverse dependencies

3direct

16indirect

Imports 3

Depends, Imports or LinkingTo, most downloaded first

nlmixr2est inferCSN modelSelection

How these are counted

Code & Tests

People & History

People (3)

Hussein Hazimeh

Author, Maintainer since 1.0.0 (2018)

Rahul Mazumder

Author

Tim Nonet

Author · added in 2.0.0

Releases (9)

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
unarchivedReturned to CRAN
2023-03-07
2.1.0Latest
record
2023-03-07 · current release · diff ↗ ·
removed 1 export
GenSyntheticHighCorr
archivedRemoved from CRAN
2023-02-16
issues were not corrected in time
R
R 4.2.0 released · 2022-04-22
R
R 4.1.0 released · 2021-05-18
unarchivedReturned to CRAN
2021-04-03
2.0.3
record
2021-04-03 · diff ↗
archivedRemoved from CRAN
2021-03-19
check problems were not corrected in time
2.0.0
record
2021-03-04 · diff ↗ ·
added 1 export
GenSyntheticHighCorr
R
R 4.0.0 released · 2020-04-24
1.2.0
record
2019-08-30 · diff ↗
R
R 3.6.0 released · 2019-04-26

Show 6 earlier eventsHide 6 earlier events

1.1.0
record
2019-04-08 · diff ↗
1.0.8
record
2018-10-29 · diff ↗
1.0.7
record
2018-09-11 · diff ↗
1.0.2
record
2018-07-03 · diff ↗
1.0.0
record
2018-07-01
R
R 3.5.0 released · 2018-04-23

Package metadata

First published: 2018-07-01
Total releases: 9 / 8 yrs
License: MIT + file LICENSE OSI
Minimum R: ≥ 3.3.0
Download size: 1.0 MB

Cite

Cite this package

Run in R for the authors' preferred citation:

citation("L0Learn")

Format

Hazimeh, H., Mazumder, R., & Nonet, T. (2023). L0Learn: Fast Algorithms for Best Subset Selection (Version 2.1.0) [Computer software]. https://doi.org/10.32614/CRAN.package.L0Learn

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 L0Learn version 2.1.0 [Data set]. HJJB, LLC. Data release v2026-10-23. https://doi.org/10.5281/zenodo.21843040

From data release v2026-10-23, which the citation names so these numbers can be found later. More on citing and the projects behind them.

Report a problem with this page →