R Observatory: Metrics for scam version 1.2-23

Balamuta, James Joseph

doi:10.5281/zenodo.21843040

scam

1.2-23Package record

Shape Constrained Additive Models

15packages dependsuggested by 7

207.8Kdownloads / year

–test coverage

13/13flavors OK

Overview

About

Maintained by Natalya PyaCRAN 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. 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-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). 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: 5.2 min · r-oldrel-windows-x86_64

Status changes

OK13 OK2026-08-04
NOTE12 OK, 1 NOTE2026-08-01
OK13 OK2026-06-09
ERROR12 OK, 1 ERROR2026-06-07
OK14 OK2026-03-10

Advisories

none known

How this is measured·How advisories are found

Documentation

In release 1.2-23

READMENoVignettesNoNEWSNoCitation fileNoWebsitenot declared in DESCRIPTION

Help pages: 59 (10 internal)includes a package overview page
Examples that run: 70%32 run in a plain check · 12 only when donttest examples are enabled (R CMD check --as-cran) · 2 hold no code
Exported functions with examples: 76%
Documented parameters: 83%
Return-value docs: 91%
Help pages citing references: 92%

How these are measured

Downloads

207.8K

CRAN downloads in the past year

Rank #823 · ~569/day · ~17.3K/mo

Releases R versions

Daily download trend is not available in this view yet.

22.7K30 days

55.2K90 days

207.8K1 year

Compare downloads with other packages →

Also on4.1K r2u4 autocran5.6K conda_forge174 c2d4u

How downloads are counted

Dependencies

Declared dependencies

2 external dependencies (excludes base and recommended)

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

Depends (1)

R >= 3.6.0

Imports (6)

mgcvmethodsstatsgraphicsMatrixsplines

LinkingTo (0)

none

Suggests (3)

nlmeemmeans estimability

Enhances (0)

none

Dependency license breakdown →

Reverse dependencies

15direct

19indirect

Depends 1 · Imports 14

Suggested by 7

Show all 22 packagesHide all 22 packages

Depends, Imports or LinkingTo, most downloaded first

pammtools GJRM insurancerating funcharts zetadiv reReg trackeR cpam serosv sspse cgaim FlexGAM MIDASim power.nb PoweREST

Suggests, most downloaded first

marginaleffects riskRegression gratia CAST csemTools IRon scar

How these are counted

Code & Tests

People & History

People (1)

Natalya Pya

Author, Maintainer since 1.0 (2012)

Releases (35)

Pick two releases to compare their code metrics.

1.2-23Latest
record
2026-10-16 · current release · diff ↗ ·
added 5 exports
model.matrix.scam, Predict.matrix.teid.smooth, Predict.matrix.tedi.smooth, smooth.construct.teid.smooth.spec, smooth.construct.tedi.smooth.spec
R
R 4.6.0 released · 2026-04-24
1.2-22
record
2026-03-12 · diff ↗
1.2-21
record
2026-01-22 · diff ↗ ·
added 1 export
vcov.scam
1.2-20
record
2025-10-14 · diff ↗
1.2-19
record
2025-05-26 · diff ↗
R
R 4.5.0 released · 2025-04-11
1.2-18
record
2025-01-17 · diff ↗ ·
added 8 exports
Predict.matrix.cpopspline.smooth, Predict.matrix.ipo.smooth, Predict.matrix.dpo.smooth, Predict.matrix.lipl.smooth, smooth.construct.ipo.smooth.spec, smooth.construct.dpo.smooth.spec, smooth.construct.cpop.smooth.spec, smooth.construct.lipl.smooth.spec
1.2-17
record
2024-06-19 · diff ↗ ·
added 2 exports
Predict.matrix.lmpi.smooth, smooth.construct.lmpi.smooth.spec
R
R 4.4.0 released · 2024-04-24
1.2-16
record
2024-02-23 · diff ↗
1.2-15
record
2024-01-25 · diff ↗ ·
added 5 exports
Predict.matrix.tismi.smooth, Predict.matrix.tismd.smooth, qq.scam, smooth.construct.tismi.smooth.spec, smooth.construct.tismd.smooth.spec
R
R 4.3.0 released · 2023-04-21
1.2-14
record
2023-04-14 · diff ↗
1.2-13
record
2022-09-09 · diff ↗
R
R 4.2.0 released · 2022-04-22

Show 35 earlier eventsHide 35 earlier events

1.2-12
record
2021-08-10 · diff ↗
R
R 4.1.0 released · 2021-05-18
1.2-11
record
2021-04-01 · diff ↗ ·
added 16 exports
Predict.matrix.mpdBy.smooth, Predict.matrix.mpiBy.smooth, Predict.matrix.cxBy.smooth, Predict.matrix.cvBy.smooth, Predict.matrix.mdcxBy.smooth, Predict.matrix.mdcvBy.smooth, Predict.matrix.micxBy.smooth, Predict.matrix.micvBy.smooth, smooth.construct.mpdBy.smooth.spec, smooth.construct.mpiBy.smooth.spec, smooth.construct.cxBy.smooth.spec, smooth.construct.cvBy.smooth.spec, smooth.construct.mdcxBy.smooth.spec, smooth.construct.mdcvBy.smooth.spec, smooth.construct.micxBy.smooth.spec, smooth.construct.micvBy.smooth.spec
1.2-10
record
2021-02-01 · diff ↗
1.2-9
record
2020-12-09 · diff ↗ ·
added 4 exports
Predict.matrix.mifo.smooth, Predict.matrix.miso.smooth, smooth.construct.mifo.smooth.spec, smooth.construct.miso.smooth.spec
1.2-8
record
2020-10-23 · diff ↗
1.2-7
record
2020-09-24 · diff ↗
1.2-6
record
2020-06-10 · diff ↗
R
R 4.0.0 released · 2020-04-24
1.2-5
record
2019-08-19 · diff ↗
1.2-4
record
2019-06-14 · diff ↗ ·
added 1 export
scam.control
R
R 3.6.0 released · 2019-04-26
1.2-3
record
2018-09-25 · diff ↗ ·
added 6 exports
Predict.matrix.tecvcv.smooth, Predict.matrix.tecxcx.smooth, Predict.matrix.tecxcv.smooth, smooth.construct.tecvcv.smooth.spec, smooth.construct.tecxcx.smooth.spec, smooth.construct.tecxcv.smooth.spec
R
R 3.5.0 released · 2018-04-23
1.2-2
record
2017-09-24 · diff ↗ ·
added 2 exports
logLik.scam, formula.scam
R
R 3.4.0 released · 2017-04-21
1.2-1
record
2017-02-16 · diff ↗ ·
added 2 exports
Predict.matrix.po.smooth, smooth.construct.po.smooth.spec
1.2-0
record
2016-06-02 · diff ↗ ·
added 15 exports
anova.scam, print.anova.scam, marginal.matrices.tescv.ps, Predict.matrix.temicx.smooth, Predict.matrix.temicv.smooth, Predict.matrix.tedecx.smooth, Predict.matrix.tedecv.smooth, Predict.matrix.tescx.smooth, Predict.matrix.tescv.smooth, smooth.construct.temicx.smooth.spec, smooth.construct.temicv.smooth.spec, smooth.construct.tedecx.smooth.spec, smooth.construct.tedecv.smooth.spec, smooth.construct.tescx.smooth.spec, smooth.construct.tescv.smooth.spec
R
R 3.3.0 released · 2016-05-03
1.1-9
record
2015-06-19 · diff ↗
R
R 3.2.0 released · 2015-04-16
1.1-8
record
2014-09-24 · diff ↗
1.1-7
record
2014-05-27 · diff ↗
R
R 3.1.0 released · 2014-04-10
1.1-6
record
2013-10-02 · diff ↗ ·
removed 2 exports
derivative.smooth, extrapolate.uni.scam

added 2 exports
derivative.scam, vis.scam
1.1-5
record
2013-09-14 · diff ↗
R
R 3.0.0 released · 2013-04-03
1.1-4
record
2012-10-08 · diff ↗
1.1-3
record
2012-09-23 · diff ↗
1.1-2
record
2012-08-05 · diff ↗ ·
added 5 exports
extrapolate.uni.scam, Predict.matrix.cv.smooth, Predict.matrix.cx.smooth, smooth.construct.cv.smooth.spec, smooth.construct.cx.smooth.spec
R
R 2.15.0 released · 2012-03-30
1.1-1
record
2012-01-28 · diff ↗
1.1
record
2012-01-22 · diff ↗
1.0
record
2012-01-20
R
R 2.14.0 released · 2011-10-31

Package metadata

First published: 2012-01-20
Total releases: 35 / 14 yrs
License: GPL (>= 2) OSI
Minimum R: ≥ 3.6.0
Download size: 188 KB

Cite

Cite this package

Run in R for the authors' preferred citation:

citation("scam")

Format

Pya, N. (2026). scam: Shape Constrained Additive Models (Version 1.2-23) [Computer software]. https://doi.org/10.32614/CRAN.package.scam

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 scam version 1.2-23 [Data set]. HJJB, LLC. Data release v2026-10-18. https://doi.org/10.5281/zenodo.21843040

From data release v2026-10-18, which the citation names so these numbers can be found later. More on citing and the projects behind them.

Report a problem with this page →