R Observatory: Metrics for chandwich version 1.1.6

Balamuta, James Joseph

doi:10.5281/zenodo.21843040

chandwich

1.1.6Package record

Chandler-Bate Sandwich Loglikelihood Adjustment

4packages depend

25.8Kdownloads / year

89.3%test coverage

13/13flavors OK

Overview

About

Maintained by Paul J. NorthropCRAN page ↗GitHub ↗Website ↗Issues ↗

Performs adjustments of a user-supplied independence loglikelihood function using a robust sandwich estimator of the parameter covariance matrix, based on the methodology in Chandler and Bate (2007) doi:10.1093/biomet/asm015. This can be used for cluster correlated data when interest lies in the parameters of the marginal distributions or for performing inferences that are robust to certain types of model misspecification. Functions for profiling the adjusted loglikelihoods are also provided, as are functions for calculating and plotting confidence intervals, for single model parameters, and confidence regions, for pairs of model parameters. Nested models can be compared using an adjusted likelihood ratio test.

Changes in 1.1.6

Bug fixes and minor improvements

Create the help file for the package correctly, with alias chandwich-package.
In plot.confint() confidence limits are now added to the horizontal axis in cases where only one interval is plotted.
Activated 3rd edition of the testthat package

From NEWS.md in the release

Install

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

install.packages("chandwich", repos = "https://cloud.r-project.org/")

Installs the current CRAN release. Prebuilt binaries on Windows and macOS.

if (!requireNamespace("pak", quietly = TRUE))
  install.packages("pak", repos = "https://cloud.r-project.org/")
pak::pak("paulnorthrop/chandwich")

Development version from paulnorthrop/chandwich. Installs pak first if it is not already available.

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-chandwich

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-chandwich

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-chandwich

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: 3.8 min · r-oldrel-windows-x86_64

Status changes

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

Advisories

none known

How this is measured·How advisories are found

Documentation

In release 1.1.6

READMEYes · 343 wordsVignettesYes · 1 · dynamicNEWSYes · 100% structured · mentions 1.1.6Citation fileNoWebsiteYes · pkgdown

Help pages: 22includes a package overview page
Examples that run: 100%9 run in a plain check
Exported functions with examples: 100%
Documented parameters: 77%
Return-value docs: 100%
Help pages citing references: 32%

Vignettes (1)

Introducing chandwich: Chandler-Bate Sandwich Loglikelihood Adjustment

How these are measured

Downloads

25.8K

CRAN downloads in the past year

Rank #2,791 · ~71/day · ~2.1K/mo

Releases R versions

Daily download trend is not available in this view yet.

1.8K30 days

5.3K90 days

25.8K1 year

Compare downloads with other packages →

Also on325 r2u21 autocran61 c2d4u

How downloads are counted

Repository

paulnorthrop/chandwich ↗Account: paulnorthrop

4Stars

1Forks

0Open issues

0Open PRs

8Releases

439Commits

1Commit identities

independence-loglikelihoodsandwichrobustmlestatistical-inferenceclustered-dataclusterscomposite-likelihood

License file reads as GPL-3.0 · 439 commits · Last activity 2026-08-21

Responsiveness

How these are sampled

PRs merged (all time): 0%
Median days to close, 50 most recently updated closed issues: not measured
Median days to close, 50 most recently updated closed PRs: 618

Stars over time

2023-08-26 · 42026-07-07 · 4

How these are measured

PracticesBeta

8 development-tooling and community-health practices detected across 5 families in the upstream repository

Checks run against github.com/paulnorthrop/chandwich on 2026-10-22.

Continuous integration (2)

GitHub ActionsR CMD check workflow

The R CMD check workflow runs on Linux, macOS and Windows, and on R-devel

Docs source (3)

README.Rmdpkgdown

GitHub Pages site last deployed 2026-08-21

Coverage (1)

Coverage reporting

CRAN release process (1)

cran-comments.md

Show all practicesHide 1 practice

Lint, format, editor (1)

RStudio project

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

Dependencies

Declared dependencies

5 external dependencies (excludes base and recommended)

Installing chandwich adds 1 package (0 with compiled code, 74 KB of source tarballs). Heaviest: numDeriv 74 KB.

Depends (1)

R >= 3.3.0

Imports (5)

graphicsmethodsnumDerivstatsutils

LinkingTo (0)

none

Suggests (4)

knitr rmarkdown sandwich testthat

Enhances (0)

none

Dependency license breakdown →

Reverse dependencies

4direct

4indirect

Imports 4

Depends, Imports or LinkingTo, most downloaded first

exdex lax lite chantrics

How these are counted

Code & Tests

Datasets

People & History

People (2)

Paul J. Northrop

Richard E. Chandler

Author, Copyright holder

Listed in earlier versions (3)

Show 3 peopleHide 3 people

Richard Chandler

no longer listed · 1.0.0 to 1.1.0

Paul J.

no longer listed · 1.0.0 to 1.1.6

Richard E.

no longer listed · 1.1.1 to 1.1.6

Releases (8)

Pick two releases to compare their code metrics.

R
R 4.6.0 released · 2026-04-24
R
R 4.5.0 released · 2025-04-11
R
R 4.4.0 released · 2024-04-24
1.1.6Latest
record
2023-08-25 · current release · diff ↗
R
R 4.3.0 released · 2023-04-21
R
R 4.2.0 released · 2022-04-22
1.1.5
record
2021-10-30 · diff ↗
1.1.4
record
2021-07-02 · diff ↗
R
R 4.1.0 released · 2021-05-18
1.1.3
record
2020-11-07 · diff ↗
R
R 4.0.0 released · 2020-04-24
1.1.2
record
2019-07-11 · diff ↗
R
R 3.6.0 released · 2019-04-26
1.1.1
record
2018-11-28 · diff ↗
1.1.0
record
2018-09-10 · diff ↗
R
R 3.5.0 released · 2018-04-23

Show 2 earlier eventsHide 2 earlier events

1.0.0
record
2018-03-06
R
R 3.4.0 released · 2017-04-21

Package metadata

First published: 2018-03-06
Total releases: 8 / 8 yrs
License: GPL (>= 2) OSI
Minimum R: ≥ 3.3.0
Bundled data: 0.6 KB / 2 files
Download size: 110 KB

Cite

Cite this package

Run in R for the authors' preferred citation:

citation("chandwich")

Format

Northrop, P. J., & Chandler, R. E. (2023). chandwich: Chandler-Bate Sandwich Loglikelihood Adjustment (Version 1.1.6) [Computer software]. https://doi.org/10.32614/CRAN.package.chandwich

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 chandwich version 1.1.6 [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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