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Hadley Wickham on GitHub

Hadley Wickham

@hadley

Chief Scientist at @posit-pbc

  • @posit-pbc
  • Houston, TX
  • 19K
    Total stars
  • 27K
    Followers
  • 202
    Public repos
  • 5,673
    Contributions

1 following

कॉम्पैक्ट कार्ड
प्रोफ़ाइल शेयर करें

Profile tree

  • Contributions: 5,673. Past 12 months.
  • Followers: 26,720. People who follow you.
  • Total stars: 18,520. Across all repos.
  • Following: 1. People you follow.
  • Public repos: 202. Owned, non-fork.

A living snapshot

Every leaf is a headline number from Hadley Wickham’s public GitHub. The canopy fills out as the work grows - sway and all.

  • 5,673 Contributions Past 12 months
  • 27K Followers People who follow you
  • 19K Total stars Across all repos
  • 1 Following People you follow
  • 202 Public repos Owned, non-fork

Data from GitHub API · refreshed in real time

5,673
Contributions
Past 12 months
365
Current streak
Aug 10, 2025 – Aug 9, 2026
365
Longest streak
Aug 10, 2025 – Aug 9, 2026
Aug Sep Oct Nov Dec Jan Feb Mar Apr May Jun Jul Aug Mon Wed Fri
Less More

Language distribution for hadley R 38.4%, JavaScript 16.0%, TeX 14.1%, Perl 12.5%, C++ 7.5%, C 7.5%, Other 4.0%
  • R 38.4%
  • JavaScript 16.0%
  • TeX 14.1%
  • Perl 12.5%
  • C++ 7.5%
  • C 7.5%
  • Other 4.0%

Frontend Backend Mobile DevOps Data AI Security Embedded Game Dev
  • Data 100
  • Frontend 30
  • Embedded 22
  • DevOps 3
  • Backend 0
  • Mobile 0
  • AI 0
  • Security 0
  • Game Dev 0

Longest streak
365d
Aug 2025
Favourite coding day
Tuesday
1,043 contributions
Most active year
2025
5,238 contributions
Signature language
R
38% of tracked code
Flagship repository
r4ds
5,130 stars
On GitHub since
2008
18 years and counting

Hadley Wickham maintains a public GitHub presence built primarily around R, which accounts for roughly 38% of their committed code, alongside JavaScript and TeX. The profile lists 202 public repositories that have attracted 18,520 stars, led by r4ds at 5,130. Over the past year they recorded 5,673 contributions, including a longest run of 365 consecutive active days. Hadley Wickham has been on GitHub since 2008 and is followed by 26,720 developers.

This overview is generated from Hadley Wickham’s public GitHub activity at the time of the last refresh. Figures cover public repositories and the trailing twelve months of contributions.

R for data science: a book

  • book
  • bookdown
  • data-science
  • r
R 5,130 ★ 4,433 forks 20 issues yesterday

Readings in applied data science

  • teaching
  • data-science
R 1,611 ★ 223 forks 5 issues 1mo ago
CC-BY-SA-4.0 GitHub

A R package for splitting, applying and combining large problems into simpler problems

R 504 ★ 112 forks 27 issues 4mo ago

Easily insert emoji into R and RMarkdown

  • r
  • emoji
R 419 ★ 52 forks 38 issues 2mo ago

dplyr

dplyr: A grammar of data manipulation

R 5,056 ★ 2,123 forks
tidyverse

Easily install and load packages from the tidyverse

R 1,797 ★ 295 forks
r4ds

R for data science: a book

R 5,130 ★ 4,433 forks
devtools

Tools to make an R developer's life easier

R 2,516 ★ 760 forks
adv-r

Advanced R: a book

TeX 2,458 ★ 1,695 forks
ellmer

Call LLM APIs from R

R 611 ★ 135 forks

All repositories →

Technology breakdown

Derived from repository languages and topics - horizontal bars, never a pie.

Languages

  • R 38%
  • JavaScript 16%
  • TeX 14%
  • Perl 13%
  • C++ 8%
  • C 7%

PDF रिज़्यूमे डाउनलोड करें

आपके प्रोजेक्ट और कौशल GitHub से पहले ही भर दिए गए हैं। जो GitHub प्रकाशित नहीं करता - संपर्क विवरण, अनुभव और शिक्षा - वह जोड़ें और एक पेज का ATS-सुरक्षित PDF एक्सपोर्ट करें।

आप जो कुछ भी टाइप करते हैं वह इसी ब्राउज़र (localStorage) में रहता है। कुछ भी अपलोड नहीं किया जाता।

अपना विवरण जोड़ें
संपर्क
अनुभव
शिक्षा

PDF एक्सपोर्ट एक मानक PDF फ़ॉन्ट का उपयोग करता है जिसमें देवनागरी ग्लिफ़ नहीं हैं, इसलिए उसके सेक्शन शीर्षक अंग्रेज़ी में ही रहते हैं। Word (.docx) एक्सपोर्ट पूरी तरह अनूदित है - इस भाषा में रिज़्यूमे के लिए उसका उपयोग करें।

202
Public repos
Owned, non-fork
19K
Total stars
Across all repos
5,673
Contributions
Past 12 months
792
Pull requests
Opened this year
183
Public gists
Snippets shared
18 y
Account age
Since 2008
100 %
Profile score
Completeness

Repository explorer

Name Language Stars Forks Size Updated

Coding statistics

Largest repository
555.6 MB
data-housing-crisis
Smallest repository
14 KB
precis
Oldest repository
May 19, 2008
ggplot2-book
Newest repository
Nov 6, 2025
genzplyr
Most starred
5,130 ★
r4ds
Most forked
4,433 forks
r4ds
Most watched
219 watchers
r4ds
Longest description
86 characters
plyr
Most open issues
96 open
adv-r

Contribution patterns

By year

  • 2026
    3,279
  • 2025
    5,238
  • 2024
    4,446
  • 2023
    4,232
  • 2022
    4,714
  • 2021
    4,279

By day of week

  • Sun
    264
  • Mon
    959
  • Tue
    1,043
  • Wed
    924
  • Thu
    991
  • Fri
    832
  • Sat
    300

Best coding day: Tue

By month (last 12)

  • Sep
    452
  • Oct
    373
  • Nov
    450
  • Dec
    529
  • Jan
    364
  • Feb
    237
  • Mar
    535
  • Apr
    354
  • May
    425
  • Jun
    605
  • Jul
    582
  • Aug
    177

GitHub journey

  1. April 2008

    Joined GitHub

    Created the @hadley account.

  2. May 2008

    Created first repository

    Published ggplot2-book, the oldest repository still on the account.

  3. May 2008

    First starred repository

    ggplot2-book is the earliest-created repository to have earned stars.

  4. July 2012

    Reached 10 repositories

    r2d3 was the 10th public repository created.

  5. June 2025

    Most productive year: 2025

    5,238 contributions recorded in 2025, more than any other year on record.

  6. November 2025

    Latest repository

    genzplyr is the most recently created repository.

Developer evolution

Your GitHub career, year by year.

2008

Started with R.

Perl R
Repos this year
4
Total repos
4
Stars, as of today
2.5k
ggplot2-book
2009

Went deeper into R.

R Ruby
Repos this year
3
Total repos
7
Stars, as of today
2.9k
data-baby-names
2011

Shifted from R to TeX.

TeX
Repos this year
1
Total repos
8
Stars, as of today
3.4k
tidy-data
2012

Shifted from TeX to C++.

C++ JavaScript
Repos this year
2
Total repos
10
Stars, as of today
3.8k
bigvis
2013

Shifted from C++ to R.

JavaScript R TeX
Repos this year
7
Total repos
17
Stars, as of today
7.0k
adv-r
2014

Went deeper into R.

C C++ R
Repos this year
5
Total repos
22
Stars, as of today
8.4k
r-pkgs
2015

Went deeper into R.

R
Repos this year
2
Total repos
24
Stars, as of today
14k
r4ds
2016

Went deeper into R.

HTML R
Repos this year
3
Total repos
27
Stars, as of today
15k
mastering-shiny
2017

Went deeper into R.

C++ R
Repos this year
4
Total repos
31
Stars, as of today
16k
emo
2018

Went deeper into R.

R
Repos this year
3
Total repos
34
Stars, as of today
18k
stats337
2019

Went deeper into R.

R
Repos this year
1
Total repos
35
Stars, as of today
18k
tidy-tools
2020

Went deeper into R.

R
Repos this year
1
Total repos
36
Stars, as of today
18k
stringb
2024

Went deeper into R.

R SCSS
Repos this year
3
Total repos
39
Stars, as of today
18k
Contributions
4,446
r-in-production
2025

Went deeper into R.

R
Repos this year
1
Total repos
40
Stars, as of today
19k
Contributions
5,238
genzplyr

Built from hadley’s public, non-fork repositories. Star totals reflect current counts, not historical snapshots.

Achievements

8 / 9 unlocked

Explorer
Created repositories in 8 or more languages
Builder
More than 50 public repositories
Open Source Enthusiast
100+ stars received across all repositories
Consistent
A 100-day-or-longer contribution streak
Documentation Hero
5 or more repositories with a detailed description
Popular
500 or more followers
Prolific Committer
1,000 or more commits in the past 12 months
Long Timer
5 or more years on GitHub
Star Collector
Starred 100 or more repositories

Open source activity

18,520
Stars received
114
Repositories starred
9,756
Forks received
453
Issues opened
Past 12 months
792
Pull requests opened
Past 12 months
279
Reviews given
Past 12 months
183
Public gists

Language evolution

The primary languages of repositories created each year.

2008
  • Perl
  • R
2009
  • R
  • Ruby
2011
  • TeX
2012
  • C++
  • JavaScript
2013
  • JavaScript
  • R
  • TeX
2014
  • C
  • C++
  • R
2015
  • R
2016
  • HTML
  • R
2017
  • C++
  • R
2018
  • R
2019
  • R
2020
  • R
2024
  • R
  • SCSS
2025
  • R

Repository growth

Repositories created per year, and the running total.

4 repositories created in 2008 3 repositories created in 2009 1 repositories created in 2011 2 repositories created in 2012 7 repositories created in 2013 5 repositories created in 2014 2 repositories created in 2015 3 repositories created in 2016 4 repositories created in 2017 3 repositories created in 2018 1 repositories created in 2019 1 repositories created in 2020 3 repositories created in 2024 1 repositories created in 2025 4 total repositories by end of 2008 7 total repositories by end of 2009 8 total repositories by end of 2011 10 total repositories by end of 2012 17 total repositories by end of 2013 22 total repositories by end of 2014 24 total repositories by end of 2015 27 total repositories by end of 2016 31 total repositories by end of 2017 34 total repositories by end of 2018 35 total repositories by end of 2019 36 total repositories by end of 2020 39 total repositories by end of 2024 40 total repositories by end of 2025 2008 2009 2011 2012 2013 2014 2015 2016 2017 2018 2019 2020 2024 2025 40 0
Created that year Cumulative total

Language tree

Built automatically from repository languages and topics.

Programming Languages
  • R
  • JavaScript
  • TeX
  • Perl
  • C++
  • C