R Observatory: Metrics for zmij version 0.1.0

Balamuta, James Joseph

doi:10.5281/zenodo.21843040

zmij

0.1.0

Round-Trip-Safe Double-Precision Formatting

0packages depend

122downloads / year

–test coverage

12/12checks pass

Overview

About

Maintained by Nan XiaoFirst published 2026-08-041 releasesCRAN page ↗GitHub ↗

Converts double-precision floating-point values to decimal strings with the shortest significands needed for round-trip recovery. Uses the 'zmij' algorithm through a vendored 'Rust' implementation. The method is described in Zverovich (2025), "Faster Double-to-String Conversion" https://vitaut.net/posts/2025/faster-dtoa/. Provides vectorized formatting, a correctly rounded inverse parser, and explicit handling of missing and non-finite values.

Install

R (CRAN)pak (dev)Fedora (COPR)

install.packages("zmij", 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("nanxstats/zmij")

Development version from nanxstats/zmij. Installs pak first if it is not already available.

# 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-zmij

RPMs from the iucar/cran COPR, rebuilt from CRAN.

For install.packages() integration in R, also: sudo dnf install R-CoprManager

Health

CRAN checks

12OK

Slowest check: 3.4 min · r-oldrel-windows-x86_64

Code health

Yes

Tests · ratio 1.53

not tracked

Coverage

100%

Documentation · exports

0

Dependencies · direct

Check history

OK2026-08-05
7 OK · 0 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE

Documentation

READMEYes · 110 wordsVignettesNopkgdown siteNoNEWSYes · 67% structuredCode of conductNoContributing guideNo

Examples that run: 100%
Documented parameters: 100%
Return-value docs: 100%
References docs: 50%

Downloads

122

CRAN downloads in the past year

Rank #24,589 · ~0/day · ~10/mo

zmij Releases R versions

Daily download trend is not available in this view yet.

12230 days

12290 days

1221 year

Compare downloads with other packages →

Repository

GitHub ↗ nanxstats/zmij

1Stars

0Forks

0Open issues

0Open PRs

1Releases

39Commits

1Contributors

floating-pointformattingzmijr-packageextendrdtoa

39 commits · Last activity 2026-08-08

Stars over time

2026-08-05 · 02026-08-11 · 1

Repository practices

Upstream repositoryBeta

4 development-tooling and community-health practices detected across 4 families in the upstream repository

Checks run against github.com/nanxstats/zmij on 2026-08-09.

Continuous integration (1)

GitHub Actions

CRAN release process (1)

cran-comments.md

Docs source (1)

README.Rmd

Lint, format, editor (1)

RStudio project

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

Dependencies

Declared dependencies

1 external dependency (excludes base and recommended)

Depends (1)

R >= 4.2

Imports (0)

none

LinkingTo (0)

none

Suggests (1)

testthat

Enhances (0)

none

Dependency license breakdown →

Reverse dependencies

0direct

0indirect

Nothing depends on this yet.

Code & Tests

People & History

People (3)

Maintainer (1)

Nan Xiao

Author, Maintainer, Copyright holder

Authors (1)

Nan Xiao

Author, Maintainer, Copyright holder

Contributors (2)

David Tolnay

Contributor, Copyright holder

Victor Zverovich

Contributor, Copyright holder

Copyright holders (3)

Nan Xiao

Author, Maintainer, Copyright holder

David Tolnay

Contributor, Copyright holder

Victor Zverovich

Contributor, Copyright holder

Package Timeline

1 release. R releases are shown for context.

0.1.0Latest
2026-08-04 · current release
R
R 4.6.0 released · 2026-04-24

Package metadata

First published: 2026-08-04
Total releases: 1 / 1 yrs
License: MIT + file LICENSE OSI
Minimum R: ≥ 4.2
Download size: not tracked yet
Installed size: not tracked yet
With dependencies: not tracked yet

Cite

Cite this package

Run in R for the authors' preferred citation:

citation("zmij")

Format

Xiao, N., Tolnay, D., & Zverovich, V. (2026). zmij: Round-Trip-Safe Double-Precision Formatting (Version 0.1.0) [Computer software]. https://doi.org/10.32614/CRAN.package.zmij

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 zmij version 0.1.0 [Data set]. HJJB, LLC. Data release v2026-08-11. https://doi.org/10.5281/zenodo.21843040

From data release v2026-08-11, which the citation names so these numbers can be found later. More on citing and the projects behind them.

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