R Observatory: Metrics for qs2 version 0.2.2

Balamuta, James Joseph

doi:10.5281/zenodo.21843040

qs2

0.2.2

Efficient Serialization of R Objects

40packages depend

224.1Kdownloads / year

32.8%test coverage

13/13checks pass

Overview

About

Maintained by Travers ChingFirst published 2024-09-1610 releasesCRAN page ↗GitHub ↗

Streamlines and accelerates the process of saving and loading R objects, improving speed and compression compared to other methods. The package provides two compression formats: the 'qs2' format, which uses R serialization via the C API while optimizing compression and disk I/O, and the 'qdata' format, featuring custom serialization for slightly faster performance and better compression. Additionally, the 'qs2' format can be directly converted to the standard 'RDS' format, ensuring long-term compatibility with future versions of R.

Install

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

install.packages("qs2", 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("qsbase/qs2")

Development version from qsbase/qs2. 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-qs2

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-qs2

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-qs2

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

Health

CRAN checks

13OK

Slowest check: 4.9 min · r-devel-windows-x86_64

Code health

Yes

Tests · ratio 0.70

32.8%

Coverage · measured lines

100%

Documentation · exports

3

Dependencies · direct

Check history

OK2026-08-05
13 OK · 0 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE
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
ERROR2026-04-23
10 OK · 3 NOTE · 0 WARNING · 1 ERROR · 0 FAILURE
NOTE2026-04-22
11 OK · 3 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE

Show 2 earlier snapshots

ERROR2026-04-18
10 OK · 3 NOTE · 0 WARNING · 1 ERROR · 0 FAILURE
NOTE2026-03-10
11 OK · 3 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE

Documentation

READMEYes · 574 wordsVignettesYes · dynamicpkgdown siteNoNEWSNoCode of conductNoContributing guideNo

Examples that run: 100%
Documented parameters: 100%
Return-value docs: 90%
References docs: 9%

Downloads

224.1K

CRAN downloads in the past year

Rank #654 · ~614/day · ~18.7K/mo

Releases R versions

Daily download trend is not available in this view yet.

31.4K30 days

89.1K90 days

224.1K1 year

Compare downloads with other packages →

Also on3.6K r2u20 autocran7.9K conda_forge

Repository

GitHub ↗ qsbase/qs2

101Stars

3Forks

3Open issues

0Open PRs

0Releases

94Commits

2Contributors

compressiondata-storagerserialization

94 commits · Last activity 2026-08-11 · +4.1% stars, 30d

Stars over time

2025-08-12 · 362026-08-12 · 101

Repository practices

Upstream repositoryBeta

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

Checks run against github.com/qsbase/qs2 on 2026-08-09.

Continuous integration (1)

GitHub Actions

Reproducibility and dev environment (1)

Makefile

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

Development tooling

AI-assisted toolingBeta

Uses AI-assisted development tooling (declared in repo)

Earliest detected marker: claude on 2026-06-03

claudecodex

Most recent: codex on 2026-06-03

Evidence

claude: on 2026-06-03 · evidence B, D
codex: on 2026-06-03 · evidence D

How this is detected·Detection ruleset v2 (updated 2026-07-29)

Dependencies

Declared dependencies

10 external dependencies (excludes base and recommended)

Depends (1)

R >= 3.5.0

Imports (3)

Rcpp RcppParallel stringfish

LinkingTo (2)

Rcpp RcppParallel

Suggests (5)

knitr rmarkdown dplyr data.table stringi

Enhances (0)

none

Dependency license breakdown →

Reverse dependencies

40direct

74indirect

Code & Tests

Datasets

People & History

People (7)

Maintainer (1)

Travers Ching

Author, Maintainer, Copyright holder

Authors (1)

Travers Ching

Author, Maintainer, Copyright holder

Contributors (5)

Francesc Alted

Contributor, Copyright holder

Yann Collet

Contributor, Copyright holder

Skibinski Przemyslaw

Contributor, Copyright holder

Reichardt Tino

Contributor, Copyright holder

Mori Yuta

Contributor, Copyright holder

Copyright holders (7)

Travers Ching

Author, Maintainer, Copyright holder

Francesc Alted

Contributor, Copyright holder

Yann Collet

Contributor, Copyright holder

Skibinski Przemyslaw

Contributor, Copyright holder

Reichardt Tino

Contributor, Copyright holder

Mori Yuta

Contributor, Copyright holder

Facebook, Inc.

Copyright holder

Package Timeline

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

0.2.2Latest
2026-06-03 · current release · diff ↗
0.2.1
2026-05-04 · diff ↗
R
R 4.6.0 released · 2026-04-24
0.2.0
2026-04-22 · diff ↗
0.1.7
2026-01-20 · diff ↗
0.1.6
2025-11-21 · diff ↗
R
R 4.5.0 released · 2025-04-11
0.1.5
2025-03-07 · diff ↗
0.1.4
2024-12-12 · diff ↗
0.1.3
2024-12-02 · diff ↗
0.1.2
2024-11-24 · diff ↗
0.1.1
2024-09-16
R
R 4.4.0 released · 2024-04-24

Package metadata

First published: 2024-09-16
Total releases: 10 / 2 yrs
License: GPL-3 OSI
Minimum R: ≥ 3.5.0
Bundled data: 13 KB / 1 file
Download size: 950 KB
Installed size: not tracked yet
With dependencies: not tracked yet

Cite

Cite this package

Run in R for the authors' preferred citation:

citation("qs2")

Format

Ching, T., Facebook, Inc., Alted, F., Collet, Y., Przemyslaw, S., Tino, R., & Yuta, M. (2026). qs2: Efficient Serialization of R Objects (Version 0.2.2) [Computer software]. https://doi.org/10.32614/CRAN.package.qs2

This is what citation() produces when a package has no citation file of its own. If it prints something else, use that.

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 qs2 version 0.2.2 [Data set]. HJJB, LLC. Data release v2026-08-15. https://doi.org/10.5281/zenodo.21843040

From data release v2026-08-15, which the citation names so these numbers can be found later. More on citing and the projects behind them.

Report a problem with this page →