SAM

1.3

Sparse Additive Modelling

4packages depend

6.1Kdownloads / year

72.1%test coverage

13/13checks pass

Overview

About

Maintained by Tuo ZhaoFirst published 2012-10-1511 releasesCRAN page ↗

Computationally efficient tools for high dimensional predictive modeling (regression and classification). SAM is short for sparse additive modeling, and adopts the computationally efficient basis spline technique. We solve the optimization problems by various computational algorithms including the block coordinate descent algorithm, fast iterative soft-thresholding algorithm, and newton method. The computation is further accelerated by warm-start and active-set tricks.

Install

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

install.packages("SAM", 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-sam

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

# 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-SAM

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

Health

CRAN checks

13OK

Slowest check: 2.9 min · r-oldrel-windows-x86_64

Check history

OK2026-04-25
12 OK · 0 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE
NOTE2026-04-22
12 OK · 2 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE
ERROR2026-04-18
11 OK · 2 NOTE · 0 WARNING · 1 ERROR · 0 FAILURE
NOTE2026-03-10
12 OK · 2 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE

Documentation

Documentation signals are not tracked yet for this package.

Downloads

6.1K

CRAN downloads in the past year

Rank #4,737 · ~17/day · ~506/mo

SAM Releases R versions

Daily download trend is not available in this view yet.

44230 days

1.9K90 days

6.1K1 year

Compare downloads with other packages →

Also on458 r2u23 autocran48 c2d4u

Dependencies

Declared dependencies

2 external dependencies (excludes base and recommended)

Depends (2)

R >= 2.14splines

Imports (0)

none

LinkingTo (2)

Rcpp RcppEigen

Suggests (0)

none

Enhances (0)

none

Dependency license breakdown →

Reverse dependencies

4direct

0indirect

DLL GSelection pgraph varEst

Code & Tests

People & History

People (6)

Maintainer (1)

Tuo Zhao

Author, Maintainer

Authors (6)

Tuo Zhao

Author, Maintainer

Haoming Jiang

Author · added in 1.1.0

Xingguo Li

Author

Han Liu

Author

Yukun Ma

Author · added in 1.1.0

Kathryn Roeder

Author

Listed in earlier versions (4)

Lie Wang

no longer listed · 1.0.2

and Kathryn Roeder

no longer listed · 1.0.3 to 1.1.1

Xinyu Fei

no longer listed · 1.1.0 to 1.1.1

and Tuo Zhao

no longer listed · 1.1.2 to 1.1.3

Package Timeline

11 releases. R releases are shown for context.

R
R 4.6.0 released · 2026-04-24
1.3Latest
2026-03-13 · current release · diff ↗
1.2
2026-02-19 · 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
R
R 4.2.0 released · 2022-04-22
1.1.3
2021-07-01 · diff ↗
unarchivedReturned to CRAN
2021-07-01
R
R 4.1.0 released · 2021-05-18
R
R 4.0.0 released · 2020-04-24
1.1.2.1
2019-07-02 · diff ↗
orphanedOrphaned by its maintainer
2019-07-02
misuse of package= for PACKAGE= was not corrected despite reminder
R
R 3.6.0 released · 2019-04-26
1.1.2
2019-04-07 · diff ↗
1.1.1
2019-03-12 · diff ↗

Show 12 earlier events

1.1.0
2019-02-18 · diff ↗
R
R 3.5.0 released · 2018-04-23
R
R 3.4.0 released · 2017-04-21
R
R 3.3.0 released · 2016-05-03
R
R 3.2.0 released · 2015-04-16
R
R 3.1.0 released · 2014-04-10
1.0.5
2014-02-12 · diff ↗
1.0.4
2013-09-18 · diff ↗
R
R 3.0.0 released · 2013-04-03
1.0.3
2013-04-02 · diff ↗
1.0.2
2012-10-15
R
R 2.15.0 released · 2012-03-30

Package metadata

First published: 2012-10-15
Total releases: 11 / 14 yrs
License: GPL-2 OSI
Download size: 48 KB
Installed size: not tracked yet
With dependencies: not tracked yet

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