R Observatory: Metrics for cobs version 1.3-9-1

Balamuta, James Joseph

doi:10.5281/zenodo.21843040

cobs

1.3-9-1Package record

Constrained B-Splines (Sparse Matrix Based)

10packages dependsuggested by 5

126.1Kdownloads / year

58.9%test coverage

13/13flavors OK

Overview

About

Maintained by Martin MaechlerCRAN page ↗Repository ↗Website ↗Issues ↗

Qualitatively Constrained (Regression) Smoothing Splines via Linear Programming and Sparse Matrices.

Install

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

install.packages("cobs", repos = "https://cloud.r-project.org/")

Installs the current CRAN release. Prebuilt binaries on Windows and macOS.

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-cobs

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-cobs

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-cobs

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: 4.0 min · r-devel-windows-x86_64

Status changes

OK13 OK2026-08-05
NOTE12 OK, 1 NOTE2026-08-01
OK13 OK2026-07-24
ERROR12 OK, 1 ERROR2026-07-23
OK14 OK2026-03-10

Advisories

none known

How this is measured·How advisories are found

Documentation

In release 1.3-9-1

READMEYes · 333 wordsVignettesNoNEWSNoCitation fileYes · cites a publicationWebsiteYes

Help pages: 15 (1 internal)
Examples that run: 100%13 run in a plain check
Exported functions with examples: 78%
Documented parameters: 59%
Return-value docs: 78%
Help pages citing references: 47%

How these are measured

Downloads

126.1K

CRAN downloads in the past year

Rank #1,208 · ~346/day · ~10.5K/mo

Releases R versions

Daily download trend is not available in this view yet.

7.9K30 days

26.8K90 days

126.1K1 year

Compare downloads with other packages →

Also on712 r2u6 autocran4.7K conda_forge147 c2d4u

How downloads are counted

Repository

r-forge.r-project.org/scm/viewvc.php ↗

Responsiveness

not measured

How these are measured

PracticesBeta

Repository r-forge.r-project.org/scm/viewvc.php is linked, but repository-practices checks have not run for it yet. Checks are GitHub-only for now.

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

Dependencies

Declared dependencies

2 external dependencies (excludes base and recommended)

Installing cobs adds 3 packages (2 with compiled code, 1.4 MB of source tarballs). Heaviest: quantreg 903 KB, SparseM 540 KB, MatrixModels 24 KB.

Depends (0)

none

Imports (7)

SparseM quantreggrDevicesgraphicssplinesstatsmethods

LinkingTo (0)

none

Suggests (1)

Matrix

Enhances (0)

none

Dependency license breakdown →

Reverse dependencies

10direct

6indirect

Depends 1 · Imports 9

Suggested by 5

Show all 15 packagesHide all 15 packages

Depends, Imports or LinkingTo, most downloaded first

joineRML demography vital biospear rTwig logcondiscr bayespmtools RPPASPACE L2E simest

Suggests, most downloaded first

mboost mev DPQ BsplineQuantReg BsplineQuantRegGui

How these are counted

Code & Tests

Datasets

People & History

People (2)

Martin Maechler

Author, Maintainer since 0.9-3

Pin T. Ng

Author

Listed in earlier versions (3)

Show 3 peopleHide 3 people

Xuming He

no longer listed · 0.9-3 to 0.9-5

U. Illinois

no longer listed · 0.9-3 to 0.9-5

Pin T.

no longer listed · 1.3-9 to 1.3-9-1

Releases (19)

Pick two releases to compare their code metrics.

R
R 4.6.0 released · 2026-04-24
1.3-9-1Latest
record
2025-07-02 · current release · diff ↗
R
R 4.5.0 released · 2025-04-11
1.3-9
record
2024-12-19 · diff ↗
R
R 4.4.0 released · 2024-04-24
1.3-8
record
2024-03-06 · diff ↗
1.3-7
record
2024-02-03 · diff ↗
R
R 4.3.0 released · 2023-04-21
1.3-5
record
2022-05-30 · diff ↗
R
R 4.2.0 released · 2022-04-22
R
R 4.1.0 released · 2021-05-18
R
R 4.0.0 released · 2020-04-24
1.3-4
record
2020-01-24 · diff ↗
1.3-3
record
2020-01-17 · diff ↗ ·
added 2 exports
interpSplineCon, isIsplineCon
R
R 3.6.0 released · 2019-04-26
R
R 3.5.0 released · 2018-04-23

Show 38 earlier eventsHide 38 earlier events

R
R 3.4.0 released · 2017-04-21
1.3-2
record
2017-01-31 · diff ↗
R
R 3.3.0 released · 2016-05-03
1.3-1
record
2015-09-01 · diff ↗
R
R 3.2.0 released · 2015-04-16
1.3-0
record
2015-01-06 · diff ↗
R
R 3.1.0 released · 2014-04-10
R
R 3.0.0 released · 2013-04-03
R
R 2.15.0 released · 2012-03-30
R
R 2.14.0 released · 2011-10-31
1.2-2
record
2011-04-26 · diff ↗
R
R 2.13.0 released · 2011-04-13
R
R 2.12.0 released · 2010-10-15
1.2-1
record
2010-08-11 · diff ↗
R
R 2.11.0 released · 2010-04-22
R
R 2.10.0 released · 2009-10-26
R
R 2.9.0 released · 2009-04-17
1.2-0
record
2009-02-25 · diff ↗
1.1-6
record
2009-01-11 · diff ↗
R
R 2.8.0 released · 2008-10-20
R
R 2.7.0 released · 2008-04-22
1.1-5
record
2008-01-26 · diff ↗ ·
added 10 exports
cobs, conreg, drqssbc2, qbsks2, mk.pt.constr, l1.design2, loo.design2, shat, plot.cobs, plot.conreg
R
R 2.6.0 released · 2007-10-03
R
R 2.5.0 released · 2007-04-24
R
R 2.4.0 released · 2006-10-03
1.1-3.5
record
2006-10-02 · diff ↗
R
R 2.3.0 released · 2006-04-24
0.9-5
record
2006-04-09 · diff ↗
R
R 2.2.0 released · 2005-10-06
R
R 2.1.0 released · 2005-04-18
R
R 2.0.0 released · 2004-10-04
R
R 1.9.0 released · 2004-04-12
0.9-4
record
2003-11-07 · diff ↗
R
R 1.8.0 released · 2003-10-08
R
R 1.7.0 released · 2003-04-16
R
R 1.6.0 released · 2002-10-01
R
R 1.5.0 released · 2002-04-29
0.9-3
record
2002-04-28

Package metadata

First published: 2002-04-28
Total releases: 19 / 24 yrs
License: GPL (>= 2) OSI
Bundled data: 60 KB / 4 files
Download size: 131 KB

Cite

Cite this package

Run in R for the authors' preferred citation:

citation("cobs")

The package provides a citation file that builds its entry when R runs it. Run citation() to see it.

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 cobs version 1.3-9-1 [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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