R Observatory: Metrics for sparseLM version 0.5

Balamuta, James Joseph

doi:10.5281/zenodo.21843040

sparseLM

0.5Package record

Interface to the 'sparseLM' Levenberg-Marquardt Library

0packages depend

2.3Kdownloads / year

–test coverage

13/13flavors OK

Overview

About

Maintained by Colin SmithCRAN page ↗GitHub ↗Website ↗

Provides an R interface to the 'sparseLM' C library for large-scale nonlinear least squares problems with arbitrarily sparse Jacobians. The underlying solver implements a sparse variant of the Levenberg-Marquardt algorithm for minimizing sum-of-squares objective functions, supports user-supplied analytic Jacobians or finite-difference approximation, and is designed to exploit sparsity for improved memory use and performance. This package exposes the solver in R and uses sparse matrix classes and the 'CHOLMOD' sparse Cholesky factorization routines through the 'Matrix' package interface. Methods from the C library are described in Lourakis (2010) doi:10.1007/978-3-642-15552-9_4.

Install

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

install.packages("sparseLM", 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("smith-group/sparseLM")

Development version from smith-group/sparseLM. 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-sparselm

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-sparseLM

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-sparseLM

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: 2.5 min · r-devel-windows-x86_64

Status changes

OK13 OK2026-08-04
NOTE12 OK, 1 NOTE2026-08-01
OK7 OK2026-03-31

Advisories

none known

How this is measured·How advisories are found

Documentation

In release 0.5

READMEYes · 153 wordsVignettesNoNEWSNoCitation fileYes · cites a publicationWebsiteYes · pkgdown

Help pages: 3
Examples that run: 100%2 run in a plain check (1 of them under a condition)
Exported functions with examples: 67%
Documented parameters: 100%
Return-value docs: 100%
Help pages citing references: 0%

How these are measured

Downloads

2.3K

CRAN downloads in the past year

Rank #17,944 · ~6/day · ~188/mo

Releases R versions

Daily download trend is not available in this view yet.

26330 days

72490 days

2.3K1 year

Compare downloads with other packages →

Also on162 r2u

How downloads are counted

Repository

smith-group/sparselm ↗Organization: Smith-Group

0Stars

0Forks

0Open issues

0Open PRs

0Releases

License file reads as GPL-2.0 · Last activity 2026-03-30

Responsiveness

not measured

How these are measured

PracticesBeta

2 development-tooling and community-health practices detected across 2 families in the upstream repository

Checks run against github.com/smith-group/sparselm on 2026-10-22.

Continuous integration (1)

GitHub Actions

Docs source (1)

pkgdown

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

Dependencies

Declared dependencies

0 external dependencies (excludes base and recommended)

Installing sparseLM adds no packages beyond those that come with R.

Depends (1)

Matrix

Imports (1)

methods

LinkingTo (1)

Matrix

Suggests (0)

none

Enhances (0)

none

Dependency license breakdown →

Reverse dependencies

0direct

0indirect

Nothing depends on this yet.

How these are counted

Code & Tests

People & History

People (2)

Colin Smith

Author, Maintainer since 0.5 (2026)

Manolis Lourakis

Author

Releases (1)

R
R 4.6.0 released · 2026-04-24
0.5Latest
record
2026-03-30 · current release
R
R 4.5.0 released · 2025-04-11

Package metadata

First published: 2026-03-30
Total releases: 1 / 1 yrs
License: GPL-2 OSI
Download size: 54 KB

Cite

Cite this package

Run in R for the authors' entry:

citation("sparseLM")

The package provides a citation file, so citation() returns the authors' own entry.

It points to 10.1007/978-3-642-15552-9_4.

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 sparseLM version 0.5 [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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