R Observatory: Metrics for SQUAREM version 2026.1

Balamuta, James Joseph

doi:10.5281/zenodo.21843040

SQUAREM

2026.1Package record

Squared Extrapolation Methods for Accelerating EM-Like Monotone Algorithms

12packages dependsuggested by 2

1.6Mdownloads / year

78.1%test coverage

13/13flavors OK

Overview

About

Maintained by Ravi VaradhanCRAN page ↗

Algorithms for accelerating the convergence of slow, monotone sequences from smooth, contraction mappings such as the EM algorithm. It can be used to accelerate any smooth, linearly convergent scheme. A tutorial-style introduction is available in vignette("SQUAREM"). See also: Varadhan & Roland (2008) doi:10.18637/jss.v092.i07.

Install

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

install.packages("SQUAREM", 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-squarem

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-SQUAREM

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-SQUAREM

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: 1.9 min · r-oldrel-macos-x86_64

Status changes

OK13 OK2026-08-05
NOTE12 OK, 1 NOTE2026-08-01
OK14 OK2026-03-19
NOTE14 NOTE2026-03-10

Advisories

none known

How this is measured·How advisories are found

Documentation

In release 2026.1

READMENoVignettesYes · 1 · dynamicNEWSYes · 33% structuredCitation fileYes · cites a publicationWebsitenot declared in DESCRIPTION

Cites a JSS article

Help pages: 3 (1 internal)
Examples that run: 100%2 run in a plain check
Exported functions with examples: 100%
Documented parameters: 100%
Return-value docs: 100%
Help pages citing references: 67%

Also includes 5 demo scripts (run with demo())

Vignettes (1)

SQUAREM Tutorial PDF

How these are measured

Downloads

1.6M

CRAN downloads in the past year

Rank #312 · ~4.5K/day · ~136K/mo

Releases R versions

Daily download trend is not available in this view yet.

117.1K30 days

342.1K90 days

1.6M1 year

Compare downloads with other packages →

Also on31K r2u4 autocran369.3K conda_forge17.3K c2d4u

How downloads are counted

Dependencies

Declared dependencies

2 external dependencies (excludes base and recommended)

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

Depends (1)

R >= 4.0

Imports (0)

none

LinkingTo (0)

none

Suggests (2)

setRNG interval

Enhances (0)

none

Dependency license breakdown →

Reverse dependencies

12direct

455indirect

Depends 1 · Imports 11

Suggested by 2

Show all 14 packagesHide all 14 packages

Depends, Imports or LinkingTo, most downloaded first

lava ashr antitrust reReg birdie BayesBrainMap templateICAr codalm tranSurv GNE diffdriver INTRIGUE

Suggests, most downloaded first

BayesfMRI FixedPoint

How these are counted

Code & Tests

People & History

People (1)

Ravi Varadhan

Author, Maintainer since 2010.8-1 (2010)

Releases (16)

Pick two releases to compare their code metrics.

R
R 4.6.0 released · 2026-04-24
2026.1Latest
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2026-03-12 · current release · diff ↗
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R 4.5.0 released · 2025-04-11
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R 4.4.0 released · 2024-04-24
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R 4.3.0 released · 2023-04-21
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R 4.2.0 released · 2022-04-22
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R 4.1.0 released · 2021-05-18
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R 4.0.0 released · 2020-04-24
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2020-01-13 · diff ↗
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R 3.6.0 released · 2019-04-26
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R 3.5.0 released · 2018-04-23

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2017-10-08 · diff ↗
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R 3.4.0 released · 2017-04-21
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R 3.3.0 released · 2016-05-03
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R 3.2.0 released · 2015-04-16
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R 3.1.0 released · 2014-04-10
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R 3.0.0 released · 2013-04-03
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R 2.15.0 released · 2012-03-30
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R 2.14.0 released · 2011-10-31
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R 2.13.0 released · 2011-04-13
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R 2.12.0 released · 2010-10-15
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2010-08-09 · diff ↗
2010.8-1
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2010-08-08
R
R 2.11.0 released · 2010-04-22

Package metadata

First published: 2010-08-08
Total releases: 16 / 16 yrs
License: GPL (>= 2) OSI
Minimum R: ≥ 4.0
Download size: 235 KB

Appears in task views

Numerical Mathematics

Cite

Cite this package

Run in R for the authors' entry:

citation("SQUAREM")

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

It points to 10.18637/jss.v092.i07.

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 SQUAREM version 2026.1 [Data set]. HJJB, LLC. Data release v2026-10-26. https://doi.org/10.5281/zenodo.21843040

From data release v2026-10-26, which the citation names so these numbers can be found later. More on citing and the projects behind them.

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