R Observatory: Metrics for scam version 1.2-22

Balamuta, James Joseph

doi:10.5281/zenodo.21843040

scam

1.2-22

Shape Constrained Additive Models

22packages depend

208Kdownloads / year

–test coverage

13/13checks pass

Overview

About

Maintained by Natalya PyaFirst published 2012-01-2034 releasesCRAN page ↗

Generalized additive models under shape constraints on the component functions of the linear predictor. Models can include multiple shape-constrained (univariate and bivariate) and unconstrained terms. Routines of the package 'mgcv' are used to set up the model matrix, print, and plot the results. Multiple smoothing parameter estimation by the Generalized Cross Validation or similar. See Pya and Wood (2015) doi:10.1007/s11222-013-9448-7 for an overview. A broad selection of shape-constrained smoothers, linear functionals of smooths with shape constraints, and Gaussian models with AR1 residuals.

Install

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

install.packages("scam", 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-scam

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-scam

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-scam

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

Health

CRAN checks

13OK

Slowest check: 5.7 min · r-devel-windows-x86_64

Code health

None

Tests · ratio 0.00

not tracked

Coverage

98%

Documentation · exports

6

Dependencies · direct

Check history

OK2026-08-04
13 OK · 0 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE
NOTE2026-08-01
12 OK · 1 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE
OK2026-06-09
13 OK · 0 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE
ERROR2026-06-07
12 OK · 0 NOTE · 0 WARNING · 1 ERROR · 0 FAILURE
OK2026-03-10
14 OK · 0 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE

Documentation

READMENoVignettesNopkgdown siteNoNEWSNoCode of conductNoContributing guideNo

Examples that run: 74%
Documented parameters: 83%
Return-value docs: 90%
References docs: 93%

Downloads

208K

CRAN downloads in the past year

Rank #709 · ~570/day · ~17.3K/mo

Releases R versions

Daily download trend is not available in this view yet.

14.3K30 days

77.5K90 days

208K1 year

Compare downloads with other packages →

Also on6K r2u17 autocran5.5K conda_forge99 c2d4u

Dependencies

Declared dependencies

2 external dependencies (excludes base and recommended)

Depends (1)

R >= 3.6.0

Imports (6)

mgcvmethodsstatsgraphicsMatrixsplines

LinkingTo (0)

none

Suggests (3)

nlmeemmeans estimability

Enhances (0)

none

Dependency license breakdown →

Reverse dependencies

22direct

19indirect

zetadiv FlexGAM GJRM MIDASim PoweREST cgaim cpam funcharts insurancerating pammtools power.nb reReg serosv sspse trackeR CAST IRon csemTools gratia marginaleffects riskRegression scar

Code & Tests

People & History

People (1)

Maintainer (1)

Natalya Pya

Author, Maintainer

Authors (1)

Natalya Pya

Author, Maintainer

Package Timeline

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

R
R 4.6.0 released · 2026-04-24
1.2-22Latest
2026-03-12 · current release · diff ↗
1.2-21
2026-01-22 · diff ↗
1.2-20
2025-10-14 · diff ↗
1.2-19
2025-05-26 · diff ↗
R
R 4.5.0 released · 2025-04-11
1.2-18
2025-01-17 · diff ↗
1.2-17
2024-06-19 · diff ↗
R
R 4.4.0 released · 2024-04-24
1.2-16
2024-02-23 · diff ↗
1.2-15
2024-01-25 · diff ↗
R
R 4.3.0 released · 2023-04-21
1.2-14
2023-04-14 · diff ↗
1.2-13
2022-09-09 · diff ↗
R
R 4.2.0 released · 2022-04-22
1.2-12
2021-08-10 · diff ↗

Show 34 earlier events

R
R 4.1.0 released · 2021-05-18
1.2-11
2021-04-01 · diff ↗
1.2-10
2021-02-01 · diff ↗
1.2-9
2020-12-09 · diff ↗
1.2-8
2020-10-23 · diff ↗
1.2-7
2020-09-24 · diff ↗
1.2-6
2020-06-10 · diff ↗
R
R 4.0.0 released · 2020-04-24
1.2-5
2019-08-19 · diff ↗
1.2-4
2019-06-14 · diff ↗
R
R 3.6.0 released · 2019-04-26
1.2-3
2018-09-25 · diff ↗
R
R 3.5.0 released · 2018-04-23
1.2-2
2017-09-24 · diff ↗
R
R 3.4.0 released · 2017-04-21
1.2-1
2017-02-16 · diff ↗
1.2-0
2016-06-02 · diff ↗
R
R 3.3.0 released · 2016-05-03
1.1-9
2015-06-19 · diff ↗
R
R 3.2.0 released · 2015-04-16
1.1-8
2014-09-24 · diff ↗
1.1-7
2014-05-27 · diff ↗
R
R 3.1.0 released · 2014-04-10
1.1-6
2013-10-02 · diff ↗
1.1-5
2013-09-14 · diff ↗
R
R 3.0.0 released · 2013-04-03
1.1-4
2012-10-08 · diff ↗
1.1-3
2012-09-23 · diff ↗
1.1-2
2012-08-05 · diff ↗
R
R 2.15.0 released · 2012-03-30
1.1-1
2012-01-28 · diff ↗
1.1
2012-01-22 · diff ↗
1.0
2012-01-20
R
R 2.14.0 released · 2011-10-31

Package metadata

First published: 2012-01-20
Total releases: 34 / 14 yrs
License: GPL (>= 2) OSI
Minimum R: ≥ 3.6.0
Download size: 185 KB
Installed size: not tracked yet
With dependencies: not tracked yet

Cite

Cite this package

Run in R for the authors' preferred citation:

citation("scam")

Format

Pya, N. (2026). scam: Shape Constrained Additive Models (Version 1.2-22) [Computer software]. https://doi.org/10.32614/CRAN.package.scam

This is what citation() produces when a package has no citation file of its own. If it prints something else, use that.

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 scam version 1.2-22 [Data set]. HJJB, LLC. Data release v2026-08-16. https://doi.org/10.5281/zenodo.21843040

From data release v2026-08-16, which the citation names so these numbers can be found later. More on citing and the projects behind them.

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