R Observatory: Metrics for zeallot version 0.2.0

Balamuta, James Joseph

doi:10.5281/zenodo.21843040

zeallot

0.2.0Package record

Multiple, Unpacking, and Destructuring Assignment

18packages dependsuggested by 8

379.4Kdownloads / year

82.5%test coverage

13/13flavors OK

Overview

About

Maintained by Nathan TeetorCRAN page ↗GitHub ↗Issues ↗

Provides a %<-% operator to perform multiple, unpacking, and destructuring assignment in R. The operator unpacks the right-hand side of an assignment into multiple values and assigns these values to variables on the left-hand side of the assignment.

Changes in 0.2.0

Breaking changes

The collector syntax has changed. The previous syntax ... was incompatible with R CMD check and would raise the error "... may be used in an incorrect context". The new syntax .. (double dots instead of triple) avoids this error. (#62) ```R

new

c(x, ..) %<-% list(1, 2, 3)

old

c(x, ...) %<-% list(1, 2, 3)

```

The destructure methods for the Date, character, and complex classes have been removed.

Show all changes in 0.2.0Hide the rest of the changes in 0.2.0

New features

Values may now be assigned by name. The new syntax allows assigning a value to a variable by name instead of position. (#47) ``R c(disp=, gear=) %<-% mtcars ``
For package developers, the new function zeallous() will prevent R CMD check from raising visible binding errors for variables assigned using %<-%. Call the function from a package's .onLoad function. (#57) ``R .onLoad <- function(libname, pkgname) { zeallous() } ``

Major improvements

Collector variables now default to an empty list instead of raising an error when there are no values to collect. (#56) ``R c(x, ..y) %<-% list(1) ``
Trailing anonymous collectors and value skips no longer raise errors. ``R c(x, ..) %<-% list(1) c(y, .) %<-% list(1) ``

Minor improvements

Error messages have been simplified.
R versions >= 3.2 are formally supported.

From NEWS.md in the release

Install

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

install.packages("zeallot", 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("r-lib/zeallot")

Development version from r-lib/zeallot. 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-zeallot

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-zeallot

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-zeallot

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: 1.8 min · r-oldrel-macos-x86_64

Status changes

OK13 OK2026-08-04
NOTE12 OK, 1 NOTE2026-08-01
OK14 OK2026-03-10

Advisories

none known

How this is measured·How advisories are found

Documentation

In release 0.2.0

READMEYes · 460 wordsVignettesYes · 1 · dynamicNEWSYes · 100% structured · mentions 0.2.0Citation fileNoWebsitenot declared in DESCRIPTION

Help pages: 4includes a package overview page
Examples that run: 100%3 run in a plain check
Exported functions with examples: 100%
Documented parameters: 100%
Return-value docs: 0%
Help pages citing references: 0%

Vignettes (1)

Unpacking Assignment HTML

How these are measured

Downloads

379.4K

CRAN downloads in the past year

Rank #747 · ~1K/day · ~31.6K/mo

Releases R versions

Daily download trend is not available in this view yet.

22.4K30 days

67.3K90 days

379.4K1 year

Compare downloads with other packages →

Also on13.4K r2u97 autocran33.1K conda_forge160 c2d4u

How downloads are counted

Repository

r-lib/zeallot ↗Organization: r-lib

272Stars

14Forks

1Open issues

2Open PRs

8Releases

202Commits

6Commit identities

unpacking-assignmentmultiple-assignmentdestructuring-assignmentpattern-matchingr

202 commits · Last activity 2026-10-01 · 0% stars, 30d · Default branch at 0.2.0.9000, ahead of CRAN 0.2.0 (checked 2026-10-11)

Responsiveness

How these are sampled

PRs merged (all time): 100%
Median days to close, 50 most recently updated closed issues: 32
Median days to close, 50 most recently updated closed PRs: 0

Stars over time

2025-10-09 · 2692026-07-07 · 272

How these are measured

PracticesBeta

8 development-tooling and community-health practices detected across 6 families in the upstream repository

Checks run against github.com/r-lib/zeallot on 2026-10-11.

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 (1)

README.Rmd

Coverage (1)

Coverage reporting (Codecov)

Reproducibility and dev environment (1)

renv

Show all practicesHide 2 practices

CRAN release process (2)

cran-comments.mdrevdep/

Lint, format, editor (1)

RStudio project

How this is detected·Detection ruleset v3 (2026-09-26)

Dependencies

Declared dependencies

4 external dependencies (excludes base and recommended)

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

Depends (1)

R >= 3.2

Imports (0)

none

LinkingTo (0)

none

Suggests (5)

codetoolstestthat knitr rmarkdown purrr

Enhances (0)

none

Dependency license breakdown →

Reverse dependencies

18direct

53indirect

Imports 18

Suggested by 8

Show all 26 packagesHide all 26 packages

Depends, Imports or LinkingTo, most downloaded first

keras keras3 mlflow ipumsr cgam torchvision tabnet luz tfevents csurvey distfromq era add2ggplot phenofit completejourney WMAP limorhyde2 debkeepr

Suggests, most downloaded first

vctrs CSTools SigBridgeRUtils fastai SDMtune listarrays RDP einops

How these are counted

Code & Tests

People & History

People (2)

Nathan Teetor

Author, Maintainer since 0.0.2 (2017)

Paul Teetor

Contributor

Releases (7)

Pick two releases to compare their code metrics.

R
R 4.6.0 released · 2026-04-24
0.2.0Latest
record
2025-05-27 · current release · diff ↗ ·
added 1 export
zeallous
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
R
R 4.1.0 released · 2021-05-18
R
R 4.0.0 released · 2020-04-24
R
R 3.6.0 released · 2019-04-26
R
R 3.5.0 released · 2018-04-23
0.1.0
record
2018-01-28 · diff ↗
0.0.6
record
2017-09-28 · diff ↗
0.0.5
record
2017-08-25 · diff ↗ ·
added 1 export
%->%
0.0.4
record
2017-07-28 · diff ↗ ·
removed 1 export
massign
R
R 3.4.0 released · 2017-04-21
0.0.3
record
2017-02-27 · diff ↗

Show 2 earlier eventsHide 2 earlier events

0.0.2
record
2017-01-27
R
R 3.3.0 released · 2016-05-03

Package metadata

First published: 2017-01-27
Total releases: 7 / 9 yrs
License: MIT + file LICENSE OSI
Minimum R: ≥ 3.2
Download size: 28 KB

Cite

Cite this package

Run in R for the authors' preferred citation:

citation("zeallot")

Format

Teetor, N., & Teetor, P. (2025). zeallot: Multiple, Unpacking, and Destructuring Assignment (Version 0.2.0) [Computer software]. https://doi.org/10.32614/CRAN.package.zeallot

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 zeallot version 0.2.0 [Data set]. HJJB, LLC. Data release v2026-10-17. https://doi.org/10.5281/zenodo.21843040

From data release v2026-10-17, which the citation names so these numbers can be found later. More on citing and the projects behind them.

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