R Observatory: Metrics for sandwich version 3.1-3

Balamuta, James Joseph

doi:10.5281/zenodo.21843040

sandwich

3.1-3Package record

Robust Covariance Matrix Estimators

195packages dependsuggested by 102

3.2Mdownloads / year

21.2%test coverage

13/13flavors OK

Overview

About

Maintained by Achim ZeileisCRAN page ↗Codeberg ↗Website ↗Issues ↗

Object-oriented software for model-robust covariance matrix estimators. Starting out from the basic robust Eicker-Huber-White sandwich covariance methods include: heteroscedasticity-consistent (HC) covariances for cross-section data; heteroscedasticity- and autocorrelation-consistent (HAC) covariances for time series data (such as Andrews' kernel HAC, Newey-West, and WEAVE estimators); clustered covariances (one-way and multi-way); panel and panel-corrected covariances; outer-product-of-gradients covariances; and (clustered) bootstrap covariances. All methods are applicable to (generalized) linear model objects fitted by lm() and glm() but can also be adapted to other classes through S3 methods. Details can be found in Zeileis et al. (2020) doi:10.18637/jss.v095.i01, Zeileis (2004) doi:10.18637/jss.v011.i10 and Zeileis (2006) doi:10.18637/jss.v016.i09.

Changes in 3.1-3

Code repository changed from R-Forge to Codeberg at: <https://codeberg.org/zeileis/sandwich/>
The pkgdown website is now hosted at: <https://zeileis.codeberg.page/sandwich/>

From NEWS.md in the release

Install

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

install.packages("sandwich", 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-sandwich

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-sandwich

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-sandwich

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: 4.5 min · r-release-macos-x86_64

Status changes

OK13 OK2026-08-04
NOTE12 OK, 1 NOTE2026-08-01
OK13 OK2026-07-14
NOTE9 OK, 4 NOTE2026-07-11
OK13 OK2026-06-27

Show 6 earlier changesHide 6 earlier changes

WARNING12 OK, 1 WARNING2026-06-14
OK13 OK2026-06-08
ERROR12 OK, 1 ERROR2026-06-07
OK14 OK2026-03-27
ERROR13 OK, 1 ERROR2026-03-25
OK14 OK2026-03-10

Advisories

none known

How this is measured·How advisories are found

Documentation

In release 3.1-3

READMEYes · 153 wordsVignettesYes · 3 · dynamicNEWSYes · 100% structured · mentions 3.1-3Citation fileYes · cites a publicationWebsiteYes

Cites a JSS article

Help pages: 22
Examples that run: 100%21 run in a plain check
Exported functions with examples: 100%
Documented parameters: 97%
Return-value docs: 100%
Help pages citing references: 95%

Vignettes (3)

How these are measured

Downloads

3.2M

CRAN downloads in the past year

Rank #199 · ~8.7K/day · ~264.7K/mo

Releases R versions

Daily download trend is not available in this view yet.

310.2K30 days

821.5K90 days

3.2M1 year

Compare downloads with other packages →

Also on29.1K r2u186 autocran122.6K conda_forge2K c2d4u

How downloads are counted

Repository

codeberg.org/zeileis/sandwich ↗

1Stars

1Forks

2Open issues

2Open PRs

604Commits

8Commit identities

604 commits · Last activity 2026-10-11

Responsiveness

How these are sampled

PRs merged (all time): 100%
Median days to close, 50 most recently updated closed issues: GitHub only
Median days to close, 50 most recently updated closed PRs: GitHub only

How these are measured

PracticesBeta

Repository codeberg.org/zeileis/sandwich is linked, but repository-practices checks have not run for it yet. Checks are GitHub-only for now.

How this is detected·Detection ruleset v4 (2026-10-20)

Dependencies

Declared dependencies

12 external dependencies (excludes base and recommended)

Installing sandwich adds 1 package (1 with compiled code, 675 KB of source tarballs). Heaviest: zoo 675 KB.

Depends (1)

R >= 3.0.0

Imports (3)

statsutilszoo

LinkingTo (0)

none

Suggests (16)

AER car geepacklatticelme4 lmtestMASSmultiwayvcovparallelpcse plm pscl scatterplot3dstats4strucchangesurvival

Enhances (0)

none

Dependency license breakdown →

Reverse dependencies

195direct

805indirect

Depends 21 · Imports 174

Suggested by 102

Show the 48 most downloaded dependentsHide the 48 most downloaded dependents

Depends, Imports or LinkingTo, most downloaded first

and 147 more dependents and 102 packages that suggest it on CRAN ↗

How these are counted

Code & Tests

Datasets

People & History

People (4)

Achim Zeileis

Author, Maintainer since 0.1-1 (2004)

Thomas Lumley

Author

Nathaniel Graham

Contributor · added in 2.4-0

Susanne Koell

Contributor · added in 3.0-0

Listed in earlier versions (1)

Susanne Berger

no longer listed · 2.4-0 to 2.5-1

Releases (40)

Pick two releases to compare their code metrics.

3.1-3Latest
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2026-08-03 · current release · diff ↗
3.1-2
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2026-07-12 · diff ↗
R
R 4.6.0 released · 2026-04-24
R
R 4.5.0 released · 2025-04-11
3.1-1
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2024-09-15 · diff ↗
R
R 4.4.0 released · 2024-04-24
3.1-0
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2023-12-11 · diff ↗ ·
added 1 export
vcovJK
R
R 4.3.0 released · 2023-04-21
3.0-2
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2022-06-15 · diff ↗
R
R 4.2.0 released · 2022-04-22
3.0-1
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2021-05-18 · diff ↗
R
R 4.1.0 released · 2021-05-18
3.0-0
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2020-10-02 · diff ↗
R
R 4.0.0 released · 2020-04-24
R
R 3.6.0 released · 2019-04-26
2.5-1
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2019-04-07 · diff ↗

Show 56 earlier eventsHide 56 earlier events

2.5-0
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2018-08-17 · diff ↗ ·
added 1 export
vcovBS.lm
R
R 3.5.0 released · 2018-04-23
2.4-0
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2017-07-26 · diff ↗ ·
added 9 exports
vcovCL, meatCL, vcovPL, meatPL, vcovPC, meatPC, vcovBS, vcovBS.default, .vcovBSenv
R
R 3.4.0 released · 2017-04-21
R
R 3.3.0 released · 2016-05-03
2.3-4
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2015-09-24 · diff ↗
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R 3.2.0 released · 2015-04-16
2.3-3
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2015-03-26 · diff ↗
2.3-2
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2014-08-24 · diff ↗
2.3-1
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2014-07-20 · diff ↗
R
R 3.1.0 released · 2014-04-10
2.3-0
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2013-10-05 · diff ↗
R
R 3.0.0 released · 2013-04-03
2.2-10
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2013-03-29 · diff ↗
R
R 2.15.0 released · 2012-03-30
2.2-9
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2012-01-14 · diff ↗ ·
added 1 export
lrvar
R
R 2.14.0 released · 2011-10-31
2.2-8
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2011-09-28 · diff ↗
2.2-7
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2011-06-07 · diff ↗
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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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R 2.11.0 released · 2010-04-22
2.2-6
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2010-03-03 · diff ↗
2.2-5
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2010-01-15 · diff ↗
2.2-4
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2009-12-08 · diff ↗
2.2-3
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2009-11-30 · diff ↗
2.2-2
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2009-11-18 · diff ↗
R
R 2.10.0 released · 2009-10-26
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R 2.9.0 released · 2009-04-17
2.2-1
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2009-02-05 · diff ↗
2.2-0
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2008-12-19 · diff ↗ ·
added 2 exports
vcovHC.default, vcovHAC.default
R
R 2.8.0 released · 2008-10-20
R
R 2.7.0 released · 2008-04-22
2.1-0
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2008-01-26 · diff ↗
2.0-3
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2007-12-14 · diff ↗
R
R 2.6.0 released · 2007-10-03
R
R 2.5.0 released · 2007-04-24
2.0-2
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2007-04-14 · diff ↗ ·
added 1 export
vcovOPG
2.0-1
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2006-11-17 · diff ↗
R
R 2.4.0 released · 2006-10-03
2.0-0
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2006-08-18 · diff ↗ ·
added 18 exports
sandwich, bread, meat, vcovHC, meatHC, vcovHAC, meatHAC, kernHAC, NeweyWest, weave, weightsLumley, weightsAndrews, bwAndrews, bwNeweyWest, estfun, kweights, isoacf, pava.blocks
1.9-0
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2006-05-24 · diff ↗
R
R 2.3.0 released · 2006-04-24
1.1-1
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2006-02-15 · diff ↗
1.1-0
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2006-01-19 · diff ↗
R
R 2.2.0 released · 2005-10-06
R
R 2.1.0 released · 2005-04-18
1.0-1
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2005-04-06 · diff ↗
1.0-0
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2004-12-02 · diff ↗
0.9-0
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2004-11-03 · diff ↗
R
R 2.0.0 released · 2004-10-04
0.1-3
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2004-07-20 · diff ↗
R
R 1.9.0 released · 2004-04-12
0.1-2
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2004-04-08 · diff ↗
0.1-1
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2004-02-20
R
R 1.8.0 released · 2003-10-08

Package metadata

First published: 2004-02-20
Total releases: 40 / 22 yrs
License: GPL-2 | GPL-3 OSI
Minimum R: ≥ 3.0.0
Bundled data: 440 KB / 4 files
Download size: 1.4 MB

Appears in task views

Econometrics Empirical Finance Robust Statistical Methods

Cite

Cite this package

Run in R for the authors' entry:

citation("sandwich")

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

It points to 10.18637/jss.v095.i01, 10.18637/jss.v011.i10, 10.18637/jss.v016.i09.

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 sandwich version 3.1-3 [Data set]. HJJB, LLC. Data release v2026-10-23. https://doi.org/10.5281/zenodo.21843040

From data release v2026-10-23, which the citation names so these numbers can be found later. More on citing and the projects behind them.

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