R for data science: a book
- book
- bookdown
- data-science
- r
R
5,130 ★
4,433 forks
20 issues
yesterday
Profile tree
Data from GitHub API- 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
Less
More
- R 38.4%
- JavaScript 16.0%
- TeX 14.1%
- Perl 12.5%
- C++ 7.5%
- C 7.5%
- Other 4.0%
- 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.
Advanced R: a book
- book
- r
- programming
- bookdown
TeX
2,458 ★
1,695 forks
96 issues
12d ago
ggplot2: elegant graphics for data analysis
Perl
1,685 ★
716 forks
38 issues
19d ago
Readings in applied data science
- teaching
- data-science
R
1,611 ★
223 forks
5 issues
1mo ago
CC-BY-SA-4.0
GitHub
Mastering Shiny: a book
- r
- shiny
- book
R
1,378 ★
566 forks
54 issues
21d ago
Building R packages
R
951 ★
644 forks
34 issues
3d ago
A paper on data tidying
TeX
430 ★
479 forks
2 issues
3mo ago
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: A grammar of data manipulation
R
5,056 ★
2,123 forks
Easily install and load packages from the tidyverse
R
1,797 ★
295 forks
R for data science: a book
R
5,130 ★
4,433 forks
Tools to make an R developer's life easier
R
2,516 ★
760 forks
Advanced R: a book
TeX
2,458 ★
1,695 forks
Call LLM APIs from R
R
611 ★
135 forks
-
r4ds 5,130 ★
R for data science: a book
-
adv-r 2,458 ★
Advanced R: a book
-
ggplot2-book 1,685 ★
ggplot2: elegant graphics for data analysis
-
stats337 1,611 ★
Readings in applied data science
-
mastering-shiny 1,378 ★
Mastering Shiny: a book
-
r-pkgs 951 ★
Building R packages
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%
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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 |
|---|
No repositories match those filters.
Coding statistics
→
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
→
-
April 2008
Joined GitHub
Created the @hadley account.
-
May 2008
Created first repository
Published ggplot2-book, the oldest repository still on the account.
-
May 2008
First starred repository
ggplot2-book is the earliest-created repository to have earned stars.
-
July 2012
Reached 10 repositories
r2d3 was the 10th public repository created.
-
June 2025
Most productive year: 2025
5,238 contributions recorded in 2025, more than any other year on record.
-
November 2025
Latest repository
genzplyr is the most recently created repository.
Developer evolution
Your GitHub career, year by year.
→
2009
Went deeper into R.
R
Ruby
- Repos this year
- 3
- Total repos
- 7
- Stars, as of today
- 2.9k
2012
Shifted from TeX to C++.
C++
JavaScript
- Repos this year
- 2
- Total repos
- 10
- Stars, as of today
- 3.8k
2013
Shifted from C++ to R.
JavaScript
R
TeX
- Repos this year
- 7
- Total repos
- 17
- Stars, as of today
- 7.0k
2016
Went deeper into R.
HTML
R
- Repos this year
- 3
- Total repos
- 27
- Stars, as of today
- 15k
2024
Went deeper into R.
R
SCSS
- Repos this year
- 3
- Total repos
- 39
- Stars, as of today
- 18k
- Contributions
- 4,446
2025
Went deeper into R.
R
- Repos this year
- 1
- Total repos
- 40
- Stars, as of today
- 19k
- Contributions
- 5,238
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.
Created that year
Cumulative total
Language tree
Built automatically from repository languages and topics.
Programming Languages →
- R
- JavaScript
- TeX
- Perl
- C++
- C