Jon Harmon (he/him/his)
LightNews LightNews
banner
jonthegeek.com
Jon Harmon (he/him/his)
@jonthegeek.com
6K followers 1K following 580 posts
🗣️#RStats #DataScience #Dogs
@dslc.io Executive Director
#TidyTuesday poster

🔗http://linkedin.com/in/jonthegeek
🔗http://github.com/jonthegeek
Posts Replies Media Videos
jonthegeek.com
I haven't really written anything yet (I've mostly just been rearranging existing code)... But using C in #RStats is way easier than I expected it to be. There's a learning curve, but it feels like it's probably worth it. And rlang bundles up some of the baseline bits to make life easier.
December 22, 2025 at 11:58 PM
jonthegeek.com
Good job, fascists! I just watched approximately my 3rd ever 60 Minutes story!

We are the bad guys. It doesn't feel morally justifiable to pay taxes this year, knowing the evil that they fund. I don't know how to do anyything about all of this, but I'm trying harder now than I was 20 minutes ago.
December 22, 2025 at 11:24 PM
jonthegeek.com
@dslc.io welcomes you to week 51 of #TidyTuesday! We're exploring The Languages of the World!

📁 https://tidytues.day/2025/2025-12-23
🗞️ https://glottolog.org/

#RStats #PyData #JuliaLang #DataViz #tidyverse #r4ds
Logo for the #TidyTuesday Project. The words TidyTuesday, A weekly data project from the Data Science Learning Community (dslc.io) overlaying a black paint splash. TidyTuesday is a weekly social data project. All are welcome to participate! Please remember to share the code used to generate your results! TidyTuesday is organized by the Data Science Learning Community. Join our Slack for free online help with R and other data-related topics, or to participate in a data-related book club! How to Participate Data is posted to social media every Monday morning. Follow the instructions in the new post for how to download the data. Explore the data, watching out for interesting relationships. We would like to emphasize that you should not draw conclusions about causation in the data. Create a visualization, a model, a shiny app, or some other piece of data-science-related output, using R or another programming language. Share your output and the code used to generate it on social media with the #TidyTuesday hashtag. Reproduction of the antique world map Nova Totius Terrarum Orbis Tabula, featuring allegorical scenes and mythological figures surrounding the continents.
December 22, 2025 at 1:52 PM
jonthegeek.com
A lot of this is still super hacky, but I'm green on devel! github.com/wranglezone/...

I'm not sure how "ok" it is that I'm basically vendoring all of {vctrs} ( @davisvaughan.bsky.social ?), but I got rid of a bunch of duplication and, importantly, I inherit all the C API stuff from rlang & vctrs
December 21, 2025 at 4:05 PM
jonthegeek.com
I was afraid to take over as maintainer of {tibblify}, since it's more "famous" than anything I maintain... but I'm realizing all the things I've been planning to work around it since it was dying, and instead I can focus on just making them easier! Watch tibblify.wrangle.zone ! #RStats #dataBS
Rectangle Nested Lists
A tool to rectangle a nested list, that is to convert it into a tibble. This is done automatically or according to a given specification. A common use case is for nested lists coming from parsing JSON...
tibblify.wrangle.zone
December 20, 2025 at 3:36 PM
jonthegeek.com
I need #RStats C help! @mgirlich added me as a maintainer on {tibblify}, which has been archived due to use of non-API entry points (among other things). I want to learn to fix this, but I don't know where to start. I'll see where I can get with AI, but would greatly prefer some human guidance!
December 20, 2025 at 12:17 PM
Reposted by Jon Harmon (he/him/his)
rpodcast.bsky.social
Episode 216 of R Weekly Highlights is out! serve.podhome.fm/episodepage/...

📊 Data visualizations in 2025 @nrennie.bsky.social
📝 Assessing package usage @masalmon.eu @ropensci.org
🏗 mutagen (Gustavo Velásquez)

h/t @mike-thomas.bsky.social & @batoolmm.bsky.social 🙏

#rstats #databs
404 Page Not Found
serve.podhome.fm
December 17, 2025 at 12:11 PM
jonthegeek.com
@dslc.io welcomes you to week 50 of #TidyTuesday! We're exploring Roundabouts across the world!

📂 https://tidytues.day/2025/2025-12-16
📰 https://www.kittelson.com/ideas/how-many-roundabouts-are-in-the-united-states/

#RStats #PyData #JuliaLang #DataViz #tidyverse #r4ds
Logo for the #TidyTuesday Project. The words TidyTuesday, A weekly data project from the Data Science Learning Community (dslc.io) overlaying a black paint splash. TidyTuesday is a weekly social data project. All are welcome to participate! Please remember to share the code used to generate your results! TidyTuesday is organized by the Data Science Learning Community. Join our Slack for free online help with R and other data-related topics, or to participate in a data-related book club! How to Participate Data is posted to social media every Monday morning. Follow the instructions in the new post for how to download the data. Explore the data, watching out for interesting relationships. We would like to emphasize that you should not draw conclusions about causation in the data. Create a visualization, a model, a shiny app, or some other piece of data-science-related output, using R or another programming language. Share your output and the code used to generate it on social media with the #TidyTuesday hashtag. Hexagonal illustration of a roundabout with three cars circling around a central island. The circular island features four green trees or bushes arranged in a clover-like pattern. The cars include an orange car, a red car, and a yellow car. Gray roads with white dashed lane markings connect to the roundabout from multiple directions, surrounded by green grass areas. The word 'roundabouts' appears in yellow text on the road.
December 15, 2025 at 1:50 PM
Reposted by Jon Harmon (he/him/his)
cedricscherer.com
I ignored the strip.clip argument in #ggplot2 for way too long 😲

Combined with a small negative margin tweak, you can place facet labels inside each panel. A tiny trick that makes small multiples feel so much cleaner.

🔵 no manual coordinates
🔵 inherits theme styling
🔵 scales nicely when resizing
Side-by-side comparison of two multi-panel bubble charts faceted by world region. The left column shows the default facet labels placed above each panel (“Africa”, “Americas”, “Asia”, “Europe”, “Oceania”). The right column shows the same charts, but the facet labels are moved inside each panel at the top-left using a negative margin. In the center, there is a title reading “Want to place your facet labels inside each panel?” with an arrow pointing right, followed by a short ggplot2 theme code snippet demonstrating how to move strip text inside the panel.
December 12, 2025 at 12:51 PM
Reposted by Jon Harmon (he/him/his)
ellakaye.co.uk
🎉 Big news for the future of #RStats. The project

"Enabling the next generation of R contributors"

has received £500k over 2 years.

- mentoring expert contributors
- modernising infrastructure
- improving governance
- strengthen communication and outreach

www.software.ac.uk/rsmf-round-1...
RSMF Round 1 Projects | Software Sustainability Institute
Round 1 of the Research Software Maintenance Fund awarded just under £3 million to 13 projects selected for their potential to deliver high impact, value for money, feasibility, and quality. The funde...
www.software.ac.uk
December 12, 2025 at 12:15 PM
Reposted by Jon Harmon (he/him/his)
user-conf.bsky.social
Support Open-Source Data Science-Sponsor UseR! 2026
Join us in Warsaw 6–9 July 2026 at the premier event for R. As a sponsor, you help power an inclusive, high-impact event while reaching thousands of researchers, developers, and educators.
user2026.r-project.org/about/sponso...

#RStats #useR2026
A promotional image for the UseR! Conference. Top text: "UseR! Conference, 7-9 July, 2026, Warsaw". Image: A scenic photograph of the Warsaw, Poland skyline at sunset, featuring prominent skyscrapers like the Palace of Culture and Science bathed in golden light. Bottom section: A text box with the useR! logo in the corner. The text reads: "Why Sponsor useR! 2026? useR!2026 brings together R users, developers, and enthusiasts from around the world. Your sponsorship helps us maintain affordable registration rates while delivering a high-quality conference experience."
October 14, 2025 at 4:43 PM
Reposted by Jon Harmon (he/him/his)
nrennie.bsky.social
We're looking at cars in Qatar for #TidyTuesday this week - "an international and modern version of the now-ancient `mtcars`" data! 📊

➡️ 9 ways to visualise the distribution of a variable

Thanks to @andrew.heiss.phd for curating this week's dataset!

#RStats #DataViz
A 3x3 grid of different ways to visualise the distribution of a variable, including histograms, density plots, gradient fills, and dots plots. The distribution shown is skewed with some outliers.
December 9, 2025 at 10:51 AM
Reposted by Jon Harmon (he/him/his)
manasseh6.bsky.social
Cars in Qatar for #TidyTuesday, Week 49.

How fast can German cars in Qatar top 100 km/h?

#rstats #dataviz #ggplot2
December 10, 2025 at 11:24 AM
Reposted by Jon Harmon (he/him/his)
rpodcast.bsky.social
Episode 215 of R Weekly Highlights is out! serve.podhome.fm/episodepage/...

🤖 AI Newsl @simonpcouch.com @sara-altman.bsky.social
🎙️ The Test Set @mchow.com @hadley.nz @wesmckinney.com
🤔 Haskell for DS @jonocarroll.fosstodon.org.ap.brid.gy

h/t @mike-thomas.bsky.social Sam Parmar 🙏

#RStats #databs
Issue 2025-W50 Highlights
How the recent frontier LLM model releases compare for successfully generating R code, our take on the new Test Set data science podcast, and a surprising…
serve.podhome.fm
December 10, 2025 at 12:11 PM
Reposted by Jon Harmon (he/him/his)
andrew.heiss.phd
My first #TidyTuesday data submission!

Check out the accompanything #rstats package too at profmusgrave.github.io/qatarcars/ - the data there has label metadata + functions for converting between QAR/USD/EUR + documentation for other unit conversions
December 8, 2025 at 5:11 PM
Reposted by Jon Harmon (he/him/his)
rconsortium.bsky.social
A milestone for #rstats: FDA expands accepted eCTD file formats for R packages, based on joint work between industry, FDA, and the R Consortium Submissions WG. Details: r-consortium.org/posts/expand...

#fda #regulatory #clinicaltrials
FDA logo
December 8, 2025 at 3:48 PM
jonthegeek.com
Curator: @andrew.heiss.phd
@dslc.io welcomes you to week 49 of #TidyTuesday! We're exploring Cars in Qatar!

📂 https://tidytues.day/2025/2025-12-09
📰 https://musgrave.substack.com/p/introducing-the-qatar-cars-dataset

#RStats #PyData #JuliaLang #DataViz #tidyverse #r4ds
Logo for the #TidyTuesday Project. The words TidyTuesday, A weekly data project from the Data Science Learning Community (dslc.io) overlaying a black paint splash. TidyTuesday is a weekly social data project. All are welcome to participate! Please remember to share the code used to generate your results! TidyTuesday is organized by the Data Science Learning Community. Join our Slack for free online help with R and other data-related topics, or to participate in a data-related book club! How to Participate Data is posted to social media every Monday morning. Follow the instructions in the new post for how to download the data. Explore the data, watching out for interesting relationships. We would like to emphasize that you should not draw conclusions about causation in the data. Create a visualization, a model, a shiny app, or some other piece of data-science-related output, using R or another programming language. Share your output and the code used to generate it on social media with the #TidyTuesday hashtag. Hex logo for the {qatarcars} package, with the title "Qatar Cars" overlaid on an illustrated car that is decorated with the design and colors of the Qatari flag. A scatterplot showing the number of seconds to accelerate from 0 to 100 km/h on the x-axis (ranging from 0 to 15 seconds) and the logged price of cars in the y-axis (ranging from $10,000 to $10,000,000 USD). The points are colored by engine type (electric, hybrid, and petrol). The plot includes an annotation pointing out the $2.2 million Lotus Evija, which is an electric hypercar with an acceleration time of about a second, and another annotation highlighting the fact that electric cars tend to accelerate quickly.
December 8, 2025 at 2:10 PM
jonthegeek.com
I just need 1 more dataset for #TidyTuesday 2025! Thank you so much to those of you who have submitted datasets!

The submissions have allowed me to make progress on a long-planned huge maintainability and usability improvement for TT, coming in 2026!
December 8, 2025 at 12:12 PM
Reposted by Jon Harmon (he/him/his)
jeremy-data.bsky.social
Hi #RStats friends. If you use R for analysis at work, what portion of your analyses are causal and what portion predictive?
December 3, 2025 at 11:49 AM
jonthegeek.com
@hadley.nz In Advanced R (Ch16 "Trade-offs"), you recommend people default to S3 for OO in #RStats. Has that advice changed to S7 yet? If not, do you think you'll eventually recommend it as the default?
I still default to S3 since it's so easy, but maybe I pay for the ease downstream somewhere.
December 3, 2025 at 12:11 PM
Reposted by Jon Harmon (he/him/his)
pgmj.bsky.social
geomtextpath can really help make a plot easier to interpret. Nice to avoid using a legend. #rstats #dataviz
Two plots side by side showing time in weeks on x axis and probability of returning to work on the y axis. The left hand plot shows the trajectory of two groups (self-efficacy improved or not improved), while the right hand plot shows the probability difference between the two groups.
December 2, 2025 at 1:09 PM
jonthegeek.com
Curator: @econmaett.github.io
@dslc.io welcomes you to week 48 of #TidyTuesday! We're exploring Can an exploding snowman predict the summer season?!

📁 https://tidytues.day/2025/2025-12-02

#RStats #PyData #JuliaLang #DataViz #tidyverse #r4ds
Logo for the #TidyTuesday Project. The words TidyTuesday, A weekly data project from the Data Science Learning Community (dslc.io) overlaying a black paint splash. TidyTuesday is a weekly social data project. All are welcome to participate! Please remember to share the code used to generate your results! TidyTuesday is organized by the Data Science Learning Community. Join our Slack for free online help with R and other data-related topics, or to participate in a data-related book club! How to Participate Data is posted to social media every Monday morning. Follow the instructions in the new post for how to download the data. Explore the data, watching out for interesting relationships. We would like to emphasize that you should not draw conclusions about causation in the data. Create a visualization, a model, a shiny app, or some other piece of data-science-related output, using R or another programming language. Share your output and the code used to generate it on social media with the #TidyTuesday hashtag. A dot plot of the average summer temperature in Zurich versus the burn duration of the Böög in minutes, with a line of best fit and record summers annotated. The plot shows a slight trend up and to the right, but 2003 had the highest temperature at almost 22 degrees, but one of the lowest burn times of around 6 minutes. Likewise, the longest burn time of 60 minutes corresponds to one of the lowest average summer temperatures at about 17 degrees.
December 1, 2025 at 1:47 PM
Reposted by Jon Harmon (he/him/his)
drmowinckels.io
Day 1: usethis - Project Setup Automation 🎯

The usethis package is your best friend for automating repetitive package development tasks! 🤖

💡 Pro Tip: Set up your global options once with usethis::edit_r_profile() to add your name, email, and preferred license.
# Start a new package usethis::create_package("~/mypackage") # Add essential infrastructure usethis::use_mit_license() usethis::use_readme_rmd() usethis::use_github_action("check-standard") usethis::use_testthat(3) usethis::use_pkgdown() usethis package logo, a cute robot with the text "usethis" on its chest.
December 1, 2025 at 11:01 AM
Reposted by Jon Harmon (he/him/his)
drmowinckels.io
🎄 ANNOUNCEMENT: R Package Development Advent Calendar 2025! 🎄

Starting December 1st, I'm launching a 25-day journey through modern R package development. here's why you should follow along 🧵

#rstats #RPackageAdvent2025 #OpenSource
A festive digital illustration features the blue R logo wearing a red Santa hat with white trim on the left. To its right stands a green Christmas tree made entirely of curly braces arranged in a triangular shape. White and light-blue %>% pipe symbols float across a dark blue, starry background like snowflakes. A speech bubble above the R logo says “Ho Ho Ho! 📦” in red text. At the bottom, white text reads: “R Package Development Advent Calendar 2025” and below it, “25 Days of Coding Magic • Dec 1–25.”
November 30, 2025 at 10:03 AM
Reposted by Jon Harmon (he/him/his)
rpodcast.bsky.social
Episode 214 of R Weekly Highlights is out! serve.podhome.fm/episodepage/...

🕵️ {mini007} multi-agents (Mohamed El Fodil Ihaddaden)
🏎️ Jarl @etiennebacher.bsky.social
🎨 {rbranding} (Willy Ray & Andrew Pulsipher)

h/t @mike-thomas.bsky.social 🙏

#RStats #databs
Issue 2025-W48 Highlights
Prepare to deploy multiple LLM-powered agents for your next (secret) missions with mini007, a new contender to the high-performance linter tools with…
serve.podhome.fm
November 26, 2025 at 12:33 PM