R Observatory: Metrics for scs version 3.2.7

Balamuta, James Joseph

doi:10.5281/zenodo.21843040

scs

3.2.7Package record

Splitting Conic Solver

2packages dependsuggested by 3

123.3Kdownloads / year

93.7%test coverage

13/13flavors OK

Overview

About

Maintained by Florian SchwendingerCRAN page ↗GitHub ↗

Solves convex cone programs via operator splitting. Can solve: linear programs ('LPs'), second-order cone programs ('SOCPs'), semidefinite programs ('SDPs'), exponential cone programs ('ECPs'), and power cone programs ('PCPs'), or problems with any combination of those cones. 'SCS' uses 'AMD' (a set of routines for permuting sparse matrices prior to factorization) and 'LDL' (a sparse 'LDL' factorization and solve package) from 'SuiteSparse' (https://people.engr.tamu.edu/davis/suitesparse.html).

Install

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

install.packages("scs", 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("FlorianSchwendinger/scs")

Development version from FlorianSchwendinger/scs. 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-scs

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-scs

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-scs

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: 2.6 min · r-devel-windows-x86_64

Status changes

OK13 OK2026-09-19
ERROR12 OK, 1 ERROR2026-09-15
OK13 OK2026-09-04
ERROR12 OK, 1 ERROR2026-08-31
OK13 OK2026-08-04

Show 9 earlier changesHide 9 earlier changes

NOTE12 OK, 1 NOTE2026-08-01
OK13 OK2026-07-05
ERROR12 OK, 1 ERROR2026-07-04
OK13 OK2026-05-29
ERROR12 OK, 1 ERROR2026-05-27
OK12 OK2026-04-25
NOTE11 OK, 3 NOTE2026-03-17
ERROR11 OK, 2 NOTE, 1 ERROR2026-03-14
NOTE11 OK, 3 NOTE2026-03-10

Advisories

none known

How this is measured·How advisories are found

Documentation

In release 3.2.7

READMEYes · 221 wordsVignettesNoNEWSYes · 100% structured · does not mention 3.2.7Citation fileYes · cites a publicationWebsitenot declared in DESCRIPTION

Help pages: 2
Examples that run: 100%1 run in a plain check
Exported functions with examples: 50%
Documented parameters: 100%
Return-value docs: 100%
Help pages citing references: 0%

How these are measured

Downloads

123.3K

CRAN downloads in the past year

Rank #1,201 · ~338/day · ~10.3K/mo

Releases R versions

Daily download trend is not available in this view yet.

10.4K30 days

27.3K90 days

123.3K1 year

Compare downloads with other packages →

Also on2.9K r2u9 autocran48.8K conda_forge192 c2d4u

How downloads are counted

Repository

florianschwendinger/scs ↗Account: FlorianSchwendinger

8Stars

3Forks

0Open issues

0Open PRs

1Releases

57Commits

7Commit identities

roptimizationconvex

57 commits · Last activity 2025-04-14

Responsiveness

How these are sampled

PRs merged (all time): 82%
Median days to close, 50 most recently updated closed issues: 6
Median days to close, 50 most recently updated closed PRs: 0

Stars over time

2025-02-28 · 82026-07-07 · 8

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/florianschwendinger/scs on 2026-10-18.

Reproducibility and dev environment (1)

Makefile

Git structural (1)

Submodules

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

Dependencies

Declared dependencies

2 external dependencies (excludes base and recommended)

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

Depends (1)

R >= 3.5.0

Imports (0)

none

LinkingTo (0)

none

Suggests (3)

Matrixslam tinytest

Enhances (0)

none

Dependency license breakdown →

Reverse dependencies

2direct

47indirect

Imports 2

Suggested by 3

Depends, Imports or LinkingTo, most downloaded first

CVXR ROI.plugin.scs

Suggests, most downloaded first

optweight EmpiricalDynamics diffcp

How these are counted

Code & Tests

People & History

People (6)

Florian Schwendinger

Author, Maintainer since 1.1-1 (2016)

Balasubramanian Narasimhan

Author · added in 1.3-1

Brendan O'Donoghue

Author, Copyright holder

Patrick R. Amestory

Copyright holder

Timothy A. Davis

Copyright holder

Iain S. Duff

Copyright holder

Releases (8)

Pick two releases to compare their code metrics.

R
R 4.6.0 released · 2026-04-24
3.2.7Latest
record
2025-04-14 · current release · diff ↗
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
3.2.4
record
2023-04-11 · diff ↗
3.0-1
record
2022-08-25 · diff ↗
R
R 4.2.0 released · 2022-04-22
3.0-0
record
2021-11-07 · diff ↗
R
R 4.1.0 released · 2021-05-18
R
R 4.0.0 released · 2020-04-24
1.3-2
record
2019-11-19 · diff ↗
1.3-1
record
2019-11-05 · diff ↗
R
R 3.6.0 released · 2019-04-26
1.2-3
record
2019-03-06 · diff ↗ ·
added 1 export
scs_control
R
R 3.5.0 released · 2018-04-23

Show 4 earlier eventsHide 4 earlier events

R
R 3.4.0 released · 2017-04-21
R
R 3.3.0 released · 2016-05-03
1.1-1
record
2016-02-23
R
R 3.2.0 released · 2015-04-16

Package metadata

First published: 2016-02-23
Total releases: 8 / 10 yrs
License: GPL-3 OSI
Minimum R: ≥ 3.5.0
Download size: 1.8 MB

Appears in task views

Optimization and Mathematical Programming

Cite

Cite this package

Run in R for the authors' entry:

citation("scs")

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

It points to 10.1007/s10957-016-0892-3.

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 scs version 3.2.7 [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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