R Observatory: Metrics for grasps version 0.1.2

Balamuta, James Joseph

doi:10.5281/zenodo.21843040

grasps

0.1.2Package record

Groupwise Regularized Adaptive Sparse Precision Solution

0packages depend

3.9Kdownloads / year

–test coverage

13/13flavors OK

Overview

About

Maintained by Shiying XiaoCRAN page ↗GitHub ↗Website ↗Issues ↗

Provides a unified framework for sparse-group regularization and precision matrix estimation in Gaussian graphical models. It implements multiple sparse-group penalties, including sparse-group lasso, sparse-group adaptive lasso, sparse-group SCAD, and sparse-group MCP, and solves them efficiently using ADMM-based optimization. The package is designed for high-dimensional network inference where both sparsity and group structure are present.

Changes in 0.1.2

Fixed the tuning-parameter grid so that all combinations of user-supplied alpha and lambda values are evaluated.
Fixed automatic tuning-parameter generation so that a separate lambda sequence is constructed for each value of alpha using its corresponding lambda.max.
Validation of nlambda and lambda.min.ratio is now performed only when lambda = NULL.
Added a check for a non-positive or non-finite lambda.max to prevent the generation of invalid lambda sequences.
Fixed within-group weight generation in gen_prec_sbm() so that each edge weight is sampled once and assigned symmetrically to the corresponding entries of the precision matrix.
Added input validation for cond.target and support for empty graphs in gen_prec_sbm().

Show all changes in 0.1.2Hide the rest of the changes in 0.1.2

Clarified the roles of lambda.safe and lambda.max in the documentation of the automatic lambda-grid construction.
Expanded the documentation of the positive-definiteness and condition-number adjustment in gen_prec_sbm() and added relevant references.

From NEWS.md in the release

Install

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

install.packages("grasps", 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("Carol-seven/grasps")

Development version from Carol-seven/grasps. 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-grasps

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-grasps

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-grasps

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: 6.7 min · r-devel-windows-x86_64

Status changes

OK13 OK2026-08-05
NOTE12 OK, 1 NOTE2026-08-01
OK12 OK2026-04-25
NOTE12 OK, 2 NOTE2026-04-22
ERROR11 OK, 2 NOTE, 1 ERROR2026-04-18

Show 1 earlier changeHide 1 earlier change

NOTE12 OK, 2 NOTE2026-03-10

Advisories

none known

How this is measured·How advisories are found

Documentation

In release 0.1.2

READMEYes · 587 wordsVignettesYes · 2 · dynamicNEWSYes · 100% structured · mentions 0.1.2Citation fileNoWebsiteYes · pkgdown

Help pages: 10
Examples that run: 100%10 run in a plain check
Exported functions with examples: 100%
Documented parameters: 95%
Return-value docs: 100%
Help pages citing references: 40% with a bibliography file

Vignettes (2)

crit HTML
pen_est HTML

How these are measured

Downloads

3.9K

CRAN downloads in the past year

Rank #7,857 · ~11/day · ~322/mo

Releases R versions

Daily download trend is not available in this view yet.

47830 days

1.1K90 days

3.9K1 year

Compare downloads with other packages →

Also on322 r2u1 autocran

How downloads are counted

Repository

carol-seven/grasps ↗Account: Carol-seven

1Stars

0Forks

0Open issues

0Open PRs

3Releases

105Commits

1Commit identities

precision-matrix-estimationsparse-matrixadmm-algorithmgaussian-graphical-modelgroup-information

License file reads as GPL-3.0 · 105 commits · Last activity 2026-10-18 · 0% stars, 30d · Default branch at 0.1.3, ahead of CRAN 0.1.2 (checked 2026-10-18)

Responsiveness

not measured

Stars over time

2026-05-20 · 12026-07-07 · 1

How these are measured

PracticesBeta

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

Checks run against github.com/carol-seven/grasps on 2026-10-18.

Continuous integration (2)

GitHub ActionsR CMD check workflow

The R CMD check workflow runs on Linux, macOS and Windows, and on R-devel

Docs source (4)

README.Rmdpkgdown

GitHub Pages site last deployed 2026-10-18 · The repository has a site deploy workflow

pkgdown site last built 2026-10-18

Reproducibility and dev environment (1)

Makefile

How this is detected·Detection ruleset v3 (2026-09-26)

Dependencies

Declared dependencies

11 external dependencies (excludes base and recommended)

Installing grasps adds 31 packages (19 with compiled code, 26 MB of source tarballs). Heaviest: ggplot2 6.0 MB, igraph 4.8 MB, Rcpp 1.8 MB.

Depends (0)

none

Imports (7)

igraph ggforce ggplot2grDevicesRcpp Rdpack scales

LinkingTo (2)

Rcpp RcppArmadillo

Suggests (4)

knitrMASSquarto rmarkdown

Enhances (0)

none

Dependency license breakdown →

Reverse dependencies

0direct

0indirect

Nothing depends on this yet.

How these are counted

Code & Tests

People & History

People (3)

Shiying Xiao

Author, Maintainer since 0.1.0 (2025)

Jun Yan

Author · added in 0.1.1

Panpan Zhang

Author · added in 0.1.1

Releases (3)

Pick two releases to compare their code metrics.

0.1.2Latest
record
2026-09-12 · current release · diff ↗
0.1.1
record
2026-05-02 · diff ↗ ·
added 1 export
prec_to_adj
R
R 4.6.0 released · 2026-04-24
0.1.0
record
2025-11-27
R
R 4.5.0 released · 2025-04-11

Package metadata

First published: 2025-11-27
Total releases: 3 / 1 yrs
License: GPL (>= 3) OSI
Download size: 1.4 MB

Cite

Cite this package

Run in R for the authors' preferred citation:

citation("grasps")

Format

Xiao, S., Yan, J., & Zhang, P. (2026). grasps: Groupwise Regularized Adaptive Sparse Precision Solution (Version 0.1.2) [Computer software]. https://doi.org/10.32614/CRAN.package.grasps

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 grasps version 0.1.2 [Data set]. HJJB, LLC. Data release v2026-10-21. https://doi.org/10.5281/zenodo.21843040

From data release v2026-10-21, which the citation names so these numbers can be found later. More on citing and the projects behind them.

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