L0ggm

0.1.1

Smooth L0 Penalty Approximations for Gaussian Graphical Models

0packages depend

1.8Kdownloads / year

–test coverage

13/13checks pass

Overview

About

Maintained by Alexander ChristensenFirst published 2026-03-263 releasesCRAN page ↗GitHub ↗

Provides smooth approximations to the L0 norm penalty for estimating sparse Gaussian graphical models (GGMs). Network estimation is performed using the Local Linear Approximation (LLA) framework (Fan & Li, 2001 doi:10.1198/016214501753382273; Zou & Li, 2008 doi:10.1214/009053607000000802) with five penalty functions: arctangent (Wang & Zhu, 2016 doi:10.1155/2016/6495417), EXP (Wang, Fan, & Zhu, 2018 doi:10.1007/s10463-016-0588-3), Gumbel, Log (Candes, Wakin, & Boyd, 2008 doi:10.1007/s00041-008-9045-x), and Weibull. Adaptive penalty parameters for EXP, Gumbel, and Weibull are estimated via maximum likelihood, and model selection uses information criteria including AIC, BIC, and EBIC (Extended BIC). Simulation functions generate multivariate normal data from GGMs with stochastic block model or small-world (Watts-Strogatz) network structures.

Install

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

install.packages("L0ggm", 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("AlexChristensen/L0ggm")

Development version from AlexChristensen/L0ggm. 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-l0ggm

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-L0ggm

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-L0ggm

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

Health

CRAN checks

13OK

Slowest check: 1.6 min · r-oldrel-windows-x86_64

Code health

None

Tests · ratio 0.00

not tracked

Coverage

100%

Documentation · exports

Dependencies · direct

Check history

OK2026-03-27
7 OK · 0 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE

Documentation

READMENoVignettesNopkgdown siteNoNEWSYes · 100% structuredCode of conductNoContributing guideNo

Examples that run: 100%
Documented parameters: 100%
Return-value docs: 100%
References docs: 67%

Downloads

1.8K

CRAN downloads in the past year

Rank #8,352 · ~5/day · ~154/mo

Releases R versions

Daily download trend is not available in this view yet.

30230 days

1.3K90 days

1.8K1 year

Compare downloads with other packages →

Also on150 r2u27 autocran

Repository

GitHub ↗ alexchristensen/l0ggm

1Stars

0Forks

0Open issues

0Open PRs

1Releases

127Commits

1Contributors

License AGPL-3.0 · 127 commits · Last activity 2026-07-20

Repository practices

Upstream repositoryBeta

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

Checks run against github.com/alexchristensen/l0ggm on 2026-07-19.

Continuous integration (1)

GitHub Actions

Governance and community (1)

Issue templates

Git structural (1)

.gitattributes

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

Dependencies

Declared dependencies

4 external dependencies (excludes base and recommended)

Depends (1)

R >= 3.5.0

Imports (7)

igraph glasso glassoFastMatrixmethodspsychstats

LinkingTo (0)

none

Suggests (0)

none

Enhances (0)

none

Dependency license breakdown →

Reverse dependencies

0direct

0indirect

Nothing depends on this yet.

Code & Tests

Code Composition

R 7,548 (62%)C 2,389 (20%)Rd 2,239 (18%)

Code characteristics

Cyclomatic complexity: 1.0 median / 13 max

Test coverage

Line coverage

–

Expression

–

Tests / Examples

–

Functions

177 11 exported

Complexity

2.5 avg / 13 max

Call network

177 nodes / 266 edges

Call graph

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Lowest coverage

Per-function coverage is not measured for this package yet.

People & History

People (8)

Maintainer (1)

Alexander Christensen

Author, Maintainer

Authors (1)

Alexander Christensen

Author, Maintainer

Contributors (7)

Contributor

Contributor

Contributor

Package Timeline

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

0.1.1Latest
2026-07-06 · current release · diff ↗
0.1.0
2026-05-16 · diff ↗
R
R 4.6.0 released · 2026-04-24
0.0.1
2026-03-26
R
R 4.5.0 released · 2025-04-11

Package metadata

First published: 2026-03-26
Total releases: 3 / 1 yrs
License: AGPL (>= 3.0)
Minimum R: ≥ 3.5.0
Bundled data: 83 KB / 3 files
Download size: not tracked yet
Installed size: not tracked yet
With dependencies: not tracked yet

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