R6DS

1.2.0

R6 Reference Class Based Data Structures

0packages depend

2.3Kdownloads / year

–test coverage

12/13checks pass

Overview

About

Maintained by Yukai YangFirst published 2019-05-142 releasesCRAN page ↗GitHub ↗

Provides reference classes implementing some useful data structures. The package implements these data structures by using the reference class R6. Therefore, the classes of the data structures are also reference classes which means that their instances are passed by reference. The implemented data structures include stack, queue, double-ended queue, doubly linked list, set, dictionary and binary search tree. See for example https://en.wikipedia.org/wiki/Data_structure for more information about the data structures.

Install

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

install.packages("R6DS", 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("yukai-yang/R6DS")

Development version from yukai-yang/R6DS. 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-r6ds

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

# 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-R6DS

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-R6DS

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

Health

CRAN checks

1NOTE12OK

Failing flavors

NOTE r-devel-linux-x86_64-debian-gcc

Slowest check: 1.1 min · r-oldrel-windows-x86_64

Code health

None

Tests · ratio 0.00

not tracked

Coverage

100%

Documentation · exports

Dependencies · direct

Check history

NOTE2026-08-01
12 OK · 1 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE
OK2026-04-25
12 OK · 0 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE
NOTE2026-03-10
11 OK · 3 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE

Documentation

READMEYes · 368 wordsVignettesYes · dynamicpkgdown siteNoNEWSYes · 33% structuredCode of conductNoContributing guideNo

Examples that run: 100%
Documented parameters: not tracked
Return-value docs: 0%
References docs: 0%

Downloads

2.3K

CRAN downloads in the past year

Rank #20,422 · ~6/day · ~190/mo

Releases R versions

Daily download trend is not available in this view yet.

14130 days

54390 days

2.3K1 year

Compare downloads with other packages →

Also on92 r2u2 autocran

Repository

GitHub ↗ yukai-yang/r6ds

6Stars

0Forks

0Open issues

0Open PRs

4Releases

42Commits

1Contributors

data-structuresreference-classstackqueuedequemapdictionarydoubly-linked-list

License GPL-3.0 · 42 commits · Last activity 2026-02-23 · 0% stars, 30d

Stars over time

2020-05-04 · 52026-07-07 · 6

Repository practices

Upstream repositoryBeta

2 development-tooling and community-health practices detected across 2 families in the upstream repository

Checks run against github.com/yukai-yang/r6ds on 2026-08-02.

Continuous integration (1)

GitHub Actions

Governance and community (1)

Issue templates

How this is detected·Detection ruleset v1 (2026-07-18)

Dependencies

Declared dependencies

3 external dependencies (excludes base and recommended)

Depends (1)

R >= 3.0.0

Imports (1)

LinkingTo (0)

none

Suggests (2)

knitr rmarkdown

Enhances (0)

none

Dependency license breakdown →

Reverse dependencies

0direct

0indirect

Nothing depends on this yet.

Code & Tests

People & History

People (1)

Maintainer (1)

Yukai Yang

Author, Maintainer

Authors (1)

Yukai Yang

Author, Maintainer

Package Timeline

2 releases. Pick two to compare their code metrics. R releases are shown for context.

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
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
1.2.0Latest
2019-05-21 · current release · diff ↗
1.1.0
2019-05-14
R
R 3.6.0 released · 2019-04-26

Package metadata

First published: 2019-05-14
Total releases: 2 / 7 yrs
License: GPL-3 OSI
Minimum R: ≥ 3.0.0
Download size: 44 KB
Installed size: not tracked yet
With dependencies: not tracked yet

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