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proto

1.0.0

Prototype Object-Based Programming

10packages depend
363.5Kdownloads / year
36.7%test coverage
13/13checks pass

Overview

About
Maintained by Hadley WickhamFirst published 2005-01-2712 releasesCRAN page ↗GitHub ↗

An object oriented system using object-based, also called prototype-based, rather than class-based object oriented ideas.

Install

Health

CRAN checks
13OK
Slowest check: 1.4 min · r-devel-windows-x86_64
Code health
Yes
Tests · ratio 0.13
36.7%
Coverage · measured lines
100%
Documentation · exports
0
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
  • OK2026-03-10
    14 OK · 0 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE

Documentation

Documentation
READMEYes · 278 wordsVignettesYes · dynamicpkgdown siteNoNEWSYes · 100% structuredCode of conductNoContributing guideNo
Examples that run
100%
Documented parameters
71%
Return-value docs
100%
References docs
0%

Downloads

363.5K
CRAN downloads in the past year
Rank #672 · ~996/day · ~30.3K/mo
Daily download trend is not available in this view yet.
27.1K30 days
83.8K90 days
363.5K1 year
Compare downloads with other packages →
Also on2.1K r2u197 autocran12.1K conda_forge643 c2d4u

Repository

Repository
11Stars
0Forks
1Open issues
0Open PRs
0Releases
100Commits
4Contributors
License GPL-2.0 · 100 commits · Last activity 2022-10-12

Stars over time

2024-11-06 · 112026-07-07 · 11

Repository practices

Upstream repositoryBeta

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

Checks run against github.com/hadley/proto on 2026-08-16.

Continuous integration (1)
Travis CI
CRAN release process (2)
cran-comments.mdrevdep/
Lint, format, editor (1)
RStudio project
Coverage (1)
Codecov
How this is detected·Detection ruleset v1 (2026-07-18)

Dependencies

Declared dependencies
2 external dependencies (excludes base and recommended)
Depends (0)
none
Imports (0)
none
LinkingTo (0)
none
Suggests (2)
Enhances (0)
none

Code & Tests

People & History

People (4)
Maintainer (1)
Maintainer · added in 1.0.0
Authors (3)
Author · added in 1.0.0
Package Timeline

12 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
  • R
    R 3.6.0 released · 2019-04-26
  • R
    R 3.5.0 released · 2018-04-23
  • R
    R 3.4.0 released · 2017-04-21
  • 1.0.0Latest
    2016-10-29 · current release · diff ↗
  • R
    R 3.3.0 released · 2016-05-03
  • R
    R 3.2.0 released · 2015-04-16
  • R
    R 3.1.0 released · 2014-04-10
  • R
    R 3.0.0 released · 2013-04-03
  • 0.3-10
    2012-12-22 · diff ↗
Show 26 earlier events
  • 0.3-9.2
    2012-10-29 · diff ↗
  • R
    R 2.15.0 released · 2012-03-30
  • R
    R 2.14.0 released · 2011-10-31
  • R
    R 2.13.0 released · 2011-04-13
  • 0.3-9.1
    2011-03-19 · diff ↗
  • 0.3-9
    2011-03-12 · diff ↗
  • R
    R 2.12.0 released · 2010-10-15
  • R
    R 2.11.0 released · 2010-04-22
  • R
    R 2.10.0 released · 2009-10-26
  • R
    R 2.9.0 released · 2009-04-17
  • R
    R 2.8.0 released · 2008-10-20
  • R
    R 2.7.0 released · 2008-04-22
  • R
    R 2.6.0 released · 2007-10-03
  • 0.3-8
    2007-09-21 · diff ↗
  • R
    R 2.5.0 released · 2007-04-24
  • 0.3-7
    2007-01-05 · diff ↗
  • R
    R 2.4.0 released · 2006-10-03
  • 0.3-6
    2006-06-22 · diff ↗
  • R
    R 2.3.0 released · 2006-04-24
  • R
    R 2.2.0 released · 2005-10-06
  • 0.3-2
    2005-04-27 · diff ↗
  • R
    R 2.1.0 released · 2005-04-18
  • 0.3-1
    2005-02-21 · diff ↗
  • 0.3-0
    2005-02-08 · diff ↗
  • 0.2-6
    2005-01-27
  • R
    R 2.0.0 released · 2004-10-04

Package metadata

First published
2005-01-27
Total releases
12 / 21 yrs
License
GPL-2 OSI
Download size
529 KB
Installed size
not tracked yet
With dependencies
not tracked yet

Cite

Cite this package

Run in R for the authors' preferred citation:

citation("proto")
Wickham, H., Grothendieck, G., Kates, L., & Petzoldt, T. (2016). proto: Prototype Object-Based Programming (Version 1.0.0) [Computer software]. https://doi.org/10.32614/CRAN.package.proto

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.

APA

Balamuta, J. J. (2026). R Observatory: Metrics for proto version 1.0.0 [Data set]. HJJB, LLC. Data release v2026-08-18. https://doi.org/10.5281/zenodo.21843040

From data release v2026-08-18, which the citation names so these numbers can be found later. More on citing and the projects behind them.

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