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Vincent Arel-Bundock

@vincentab.bsky.social
6.5K followers 1.4K following 1.2K posts

Prof. Most tweets about R. “Polisci, it’s all about what’s going on.” arelbundock.com

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Reposted by Vincent Arel-Bundock
Emi Tanaka @emitanaka.org · 14h
I’m pleased to announce that Vol 18 Issue 3 of The R Journal is out now! 🥳 Free & open access, R journal is made possible by our volunteer editors, reviewers + contributing authors. Thank you all! journal.r-project.org/issues/2026-3/ 🧵 20 articles 👇 #rstats journal.r-project.org/issues/2026-3/
journal.r-project.org
The R Journal: Volume 18/3
Articles published in the September 2026 issue
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Vincent Arel-Bundock @vincentab.bsky.social · 04/09/2026
Big news! 🎉 𝚖𝚊𝚛𝚐𝚒𝚗𝚊𝚕𝚎𝚏𝚏𝚎𝚌𝚝𝚜 1.0.0 for #Rstats is out. It’s a big number and it feels like a big step. I wrote a blog on the challenges of interpreting statistical models, SPEED, cool new features, the future, and a 5 year package development and writing odyssey. arelbundock.com/posts/margin...
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Lucy D’Agostino McGowan @lucystats.bsky.social · 31/08/2026
🎙️ New Podcast! @sarahlotspeich.bsky.social & I are launching Regression to the Mean Girls where we go way too deep into silly data side quests! In our first episode Sarah deep dives on time to first kiss in romance novels! open.spotify.com/episode/73wC... regressiontothemeangirls.com
open.spotify.com
Romance by the Numbers: First Sparks Across Tropes
Regression to the Mean Girls · Episode
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Vincent Arel-Bundock @vincentab.bsky.social · 26/08/2026
Interesting essay by the great Kevin Munger. asteriskmag.com/issues/15/sa...
asteriskmag.com
Saving Academics from Themselves
The university will survive AI. That doesn’t mean we’ll like what it turns into.
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Etienne Bacher @etiennebacher.bsky.social · 24/08/2026
#rstats I'm glad to announce Jarl 0.6.0! Jarl is a very fast R linter, written in Rust. This release brings many improvements and fixes. See the blog post: www.etiennebacher.com/posts/2026-0... And the full changelog: jarl.etiennebacher.com/changelog 🧵 to highlight some features below (1/5)
etiennebacher.com
Jarl 0.6.0 | Etienne Bacher
Personal website of Etienne Bacher: blog posts about R, research, and software.
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Vincent Arel-Bundock @vincentab.bsky.social · 23/08/2026
The 𝚝𝚒𝚗𝚢𝚝𝚊𝚋𝚕𝚎 0.18.0 📦 for #RStats is out! The new version is faster, has lots of bug fixes, and some beat new features. Check it out if you need a dead simple, ultra-flexible, and dep-free package to draw tables: (interactive) html, typ, tex, pdf, and png. vincentarelbundock.github.io/tinytable
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Vincent Arel-Bundock @vincentab.bsky.social · 14/08/2026
Cutest book cover picture ever!
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Vincent Arel-Bundock @vincentab.bsky.social · 10/08/2026
And here's the website link: vincentarelbundock.github.io/mosaic/
vincentarelbundock.github.io
Mosaic
Tree-based slide grids and incremental reveals for Typst.
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Reposted by Vincent Arel-Bundock
Julia M. Rohrer @dingdingpeng.the100.ci · 10/08/2026
New issue of WiP just arrived and I genuinely can’t decide what to read first — What medicine could be, will farm animals always suffer, what if everything we know about recycling was wrong, a piece about how Thailand was never conquered, daycare pseudoscience.
Cover of the Works in Progress Magazine
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Vincent Arel-Bundock @vincentab.bsky.social · 10/08/2026
If you use #Typst and want to create beautiful slide shows, using a simple interface, check out my new Mosaic package! The website hosts tons of tutorials and examples. Please let me if you try, find bugs, or have feature requests. I'm very eager to improve Mosaic!
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Becks Spake @spakey.bsky.social · 06/08/2026
Today I was delighted to discover the meme gallery on the marginaleffects website 😂 marginaleffects.com/bonus/meme.h...
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Vincent Arel-Bundock @vincentab.bsky.social · 06/08/2026
Bigger daughter made a photo montage of herself at the Detroit Institute of Art, 13 years apart.
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Crystal Lewis @cghlewis.bsky.social · 28/07/2026
Issue 55 of #rdmweekly is out! 📬 ➡️ The Rapid Rise of Bayesian Inference and Open Science Practices in Psychology @ejwagenmakers.bsky.social ➡️ data.table, base, dplyr, pandas, and polars @vincentab.bsky.social ➡️ SQLite Query Explainer @simonwillison.net rdmweekly.substack.com/p/rdm-weekly...
rdmweekly.substack.com
RDM Weekly - Issue 055
A weekly roundup of Research Data Management resources.
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Vincent Arel-Bundock @vincentab.bsky.social · 21/07/2026
Here's a useful page with a **ton** of common tasks in #RStats, done with parallel syntax for tidyverse vs. data.table vs. base. arelbundock.com/posts/dt_tb_... #rdatatable #tidyverse
arelbundock.com
data.table vs. base vs. dplyr | Vincent Arel-Bundock
Academic website and blog of Vincent Arel-Bundock.
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Vincent Arel-Bundock @vincentab.bsky.social · 20/07/2026
I'll be in Ann Arbor next week to talk about `marginaleffects` and how to interpret statistical models. Let me know if you're around! pdhp.isr.umich.edu/workshops/ #RStats #PyData
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Grant McDermott @gmcd.bsky.social · 03/07/2026
𝐭𝐢𝐧𝐲𝐩𝐥𝐨𝐭 v0.7.0 now available on CRAN 🎉 This is big release, with loads of new features. Same tiny footprint, though ;-) Short highlight thread below, borrowing examples from our gallery: grantmcdermott.com/tinyplot/vig...
https://github.com/grantmcdermott/tinyplot/blob/main/vignettes/gallery_figs/bubble-quakes.Rhttps://github.com/grantmcdermott/tinyplot/blob/main/vignettes/gallery_figs/simpsons-paradox.Rhttps://github.com/grantmcdermott/tinyplot/blob/main/vignettes/gallery_figs/barplot-meat.Rhttps://github.com/grantmcdermott/tinyplot/blob/main/vignettes/gallery_figs/spineplot-titanic.R
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Vincent Arel-Bundock @vincentab.bsky.social · 26/06/2026
Can you guess a country by looking at its Greenhouse Gas emissions? It's hard!! climatle.xyz shows you the country's worst sectors, electricity mix, and its GHG trajectory over time. You get 6 guesses and geographic hints after every bad guess. h/t the great Sam Rowan
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Alexander Wuttke @kunkakom.bsky.social · 20/06/2026
What can surveys miss when respondents choose the same answer option? In this pre-print, we argue that public opinion research needs not only to know where respondents stand, but how they think. AI Conversational Interviewing is one way to make that observable at scale
AI Conversational Interviewing: Scaling Up Semi-Structured and In-depth Interviews
Public opinion research has long faced a trade-off between depth and scale: standardized surveys enable large-scale measurement but restrict respondents to researcher-defined categories, obscuring the diversity of unexpected considerations that underlie public sentiment. More conversational interviews provide richer insights through open-ended probing, but their reliance on trained human interviewers has kept them difficult to scale. This study introduces AI Conversational Interviewing as a method for collecting open-ended public opinion data at scale, pursuing three objectives: to demonstrate the analytical value of conversational text data for questions beyond the reach of closed-ended items; to assess the method's practical viability through participants' own evaluations; and to inform implementation by experimentally comparing voice-based, chat-based, and free-choice interview modes. We conducted a study combining an AI-led interview with a standardized survey on migration policy among 571 respondents recruited via Prolific and Payback Panel. The findings establish AI Conversational Interviewing as a viable and valuable addition to the social-science toolkit. The conversational transcripts surface considerations and reasoning that a comprehensive standardized battery does not capture such as markedly different mental models of migration among subgroups with similar attitudes levels. Among respondents who completed the interview, evaluations of the AI interview were at or above those of the standardized survey across modes, although completion itself varied by condition. By releasing open data and open-source pipeline materials, the study contributes to a growing literature on harnessing artificial intelligence to expand the methods of public opinion measurement.
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Vincent Arel-Bundock @vincentab.bsky.social · 20/06/2026
🎉 Announcing Calepin 🎉 A new tool to create computational notebooks and static websites, built on Typst. Write code and prose directly in your .typ files, then publish them as documents or as a full website. vincentarelbundock.github.io/calepin/ 1/6 🧵 #Rstats #Pydata #Typst
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Vincent Arel-Bundock @vincentab.bsky.social · 12/06/2026
Today I visited LG2, Canada's largest hydro-electric dam. The selfie (sorry!) shows the "Staircase of the Giants." It's an iconic angle every Québecois has seen, but it's hard to convey scale. The 2nd pic is from the top, showing just how big just the first step is. What an amazing day! #hydroquebec
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Gerry Carter @gerrycarter.bsky.social · 11/06/2026
I highly recommend this very clear, helpful and practical paper on statistical inference with marginaleffects package. I added it to my lab’s “required reading” list.
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Vincent Arel-Bundock @vincentab.bsky.social · 04/06/2026
I worry that initiatives like this will break pro-social norms. Willingness to give feedback generously is one of the most beautiful things in our community. Plus, universities pay profs with the understanding that this is part of the job description, so the idea we do this for "free" is laughable.
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Institute for Replication @i4replication.bsky.social · 31/05/2026
Incentives to reproduce and replicate articles are so bad. Even when your comment leads to the retraction of a PLOS One article, the reward is a (10 days late) email with a thank you at the bottom. Retraction notice: journals.plos.org/plosone/arti.... But we are not complaining about PLOS One 🧵
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Reposted by Vincent Arel-Bundock
Alejandro Schuler @aschuler.bsky.social · 01/06/2026
I teach marginaleffects in my intro stats class at Berkeley public health. I've heard some pushback that students don't learn how to eg exponentiate a coefficient from a logistic regression. They don't understand this is a feature and not a bug. Keep up the good work @vincentab.bsky.social
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Vincent Arel-Bundock @vincentab.bsky.social · 31/05/2026
I’ve grown super worried about LLM agents w/ access to all my files and secrets. Existing sandboxes and containers felt hard to use day-to-day, so I built a small convenient utility to keep agents away from important stuff. It’s called “bulle” (for “bubble”). 1/2 vincentarelbundock.github.io/bulle
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Vincent Arel-Bundock @vincentab.bsky.social · 21/05/2026
Next week!
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Reposted by Vincent Arel-Bundock
Aki Vehtari @avehtari.bsky.social · 13/05/2026
In "Uncertainty in Bayesian leave-one-out cross-validation based model comparison" doi.org/10.1214/25-B... we showed when LOO-CV elpd_diff and se_diff normal approximation uncertainty quantification in model comparison is well calibrated. We have now merged a related PR to loo R package 1/
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JsonGeller @jgeller1phd.bsky.social · 11/05/2026
Long tables that wont fit on a page? In tinytable by @vincentab.bsky.social you can rotate tables with theme_rotate(). Game changer!
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Reposted by Vincent Arel-Bundock
Ryan Briggs @ryancbriggs.net · 11/05/2026
We have a new version of this paper out. The headline results are the same—political science must filter results heavily for statistical significance—but we've added many extensions and rewritten much of it in response to feedback (thank you!). A quick thread on updates 👇
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Dr Di Cook @visnut.bsky.social · 11/05/2026
Super excited to get this at my door today! Ursula Laa and my book on exploring high-d data and models is in print! Book website is www.routledge.com/Interactivel... if interested I think my 30% discount code might work for you - msg me. Time to update dicook.github.io/mulgar_book/ too! #rstats
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Simon P. Couch @simonpcouch.com · 08/05/2026
The newest release of Posit Assistant, an agent for coding and data analysis, includes a "data cleaning mode." When enabled, the agent will run quality checks and surface decisions about e.g. import issues, factor levels, etc to the user. In the AI Newsletter: opensource.posit.co/blog/2026-05...
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Vincent Arel-Bundock @vincentab.bsky.social · 06/05/2026
It is **extremely** cool to see {marginaleffects} for #RStats used in fields I know nothing about. Here's a fun analysis of how often people use “um” and “uh” in speech.
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Felix Thoemmes @felixthoemmes.bsky.social · 05/05/2026
It has arrived @vincentab.bsky.social Perfect sabbatical reading for next semester and will have to think about how I will weave marginaleffects, emmeans, and @easystats.github.io together for teaching next year...
Model to meaning book by Vincent Arel-Bundock
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Achim Zeileis @zeileis.org · 05/05/2026
🎂 Happy 50th Birthday S (and #rstats)!
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Vincent Arel-Bundock @vincentab.bsky.social · 05/05/2026
Do you know a good framework to document data analysis choices? Ex: dropping obs, recoding a var, tuning pars, model + test statistics, etc. Ideally human-readable so people don't have to read my entire codebase. Low-maintenance+ machine-readable for bonus points! #RStats #PyData
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Peter Dalgaard @pdalgd.bsky.social · 24/04/2026
R version 4.6.0 "Because it was There" (source version) has been released. It should be on CRAN by now. #rstats The choice of codename is in remembrance of R Core member Tomàš Kalibera (1978-2026). Among many other things, he was a keen mountain climber.
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Vincent Arel-Bundock @vincentab.bsky.social · 24/04/2026
I'm really excited to teach this workshop again in May. The best part is always interacting with smart, engaged participants, and I'd love to have you on board! Let me know if you're curious and have any questions.
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Vincent Arel-Bundock @vincentab.bsky.social · 22/04/2026
It's out, everyone. It's out! Julia is one of the most brilliant translational methodologists I know, and it was a real honor to work with her on this paper. Please let us know if you have any questions or feedback! (BTW, I'm a psychologist now?)
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Vincent Arel-Bundock @vincentab.bsky.social · 17/04/2026
🚨 #RStats and #PyData devs! I'm looking for β testers for this thing I just built: A unified dashboard + orchestrator for code and data quality checks. It has lots of neat features and I'm super eager for feedback and bug reports. Check out the video demo: vincentarelbundock.github.io/scrutin/
A Unified Dashboard and Orchestrator for Quality Checks¶

Unit tests · Data validation · Linting · Spelling

Run every quality check on your project using a single command: unit tests, data validation, linters, spell checkers. Scrutin watches for edits, figures out which checks are affected, and re-runs them in parallel. Drill into a failure to see the expected and actual values, as well as the relevant source code. Use quick keystrokes to fix linting and spelling issues, or to open files in your editor of choice.
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Vincent Arel-Bundock @vincentab.bsky.social · 17/04/2026
The great @eddelbuettel.com invited me to his STAT447 class at the University of Illinois. If you'd like to hear me speak about the interpretation of statistical models in #RStats, using the {marginaleffects} 📦, check out the video! www.youtube.com/watch?v=v3TX...
youtube.com
STAT 447 (2026) Guest Lecture by Vincent Arel-Bundock
YouTube video by Dirk Eddelbuettel
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Dirk Eddelbuettel @eddelbuettel.com · 06/04/2026
April 2026 will bring a new #Ubuntu 26.04, a new #Rstats release 4.6.0 and a new #BioConductor 3.23. And ... as the "future is unevenly distributed" we already have #r2u running 26.04. See 'zero to tidyverse': 10 sec, 107 files, 1 command. #r2u. Fast. East. Reliable. Pick All Three.
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Vincent Arel-Bundock @vincentab.bsky.social · 04/04/2026
This looks like a great resource!
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Institute for Replication @i4replication.bsky.social · 01/04/2026
🧵1/ Our first meta-science paper (with 350+ coauthors) is published today in Nature. It presents one of the largest-ever reproducibility projects in economics & political science. Here’s what we found 👇
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Etienne Bacher @etiennebacher.bsky.social · 24/03/2026
#rstats I'm glad to announce Jarl 0.5.0! Jarl is a very fast R linter, written in Rust. This release brings many improvements and fixes. See the blog post: www.etiennebacher.com/posts/2026-0... And the full changelog: jarl.etiennebacher.com/changelog 🧵 to highlight some features below (1/4)
etiennebacher.com
Jarl 0.5.0
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Vincent Arel-Bundock @vincentab.bsky.social · 23/03/2026
I've been working on something fun! When you process #QuartoPub notebooks at sub-millisecond speed, you get *instant* previews as you type, and you can render massive websites in mere seconds. 🤯🚀 #Quarto #RStats
benchmarks showing compilation of quarto documents at sub-millisecond speed
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Richard McElreath 🐈‍⬛ @rmcelreath.bsky.social · 22/03/2026
Statistical Rethinking 2026 is done: 20 new lectures emphasizing logical and critical statistical workflow, from basics of probability theory to causal inference to reliable computation to sensitivity. It's all free, made just for you. Lecture list and links: github.com/rmcelreath/s...
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Will Lowe @conjugateprior.org · 21/03/2026
"The book of y tho" by Judea Pearl
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Vincent Arel-Bundock @vincentab.bsky.social · 09/03/2026
How much does it pay to publish an open access academic book? Read this thread for my story and 💲💰 amounts. 🧵 www.routledge.com/9781032908724
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Antoine Vernet @antoinevernet.com · 06/03/2026
I have been using the book in my data analytics class since 2021 and it is great. I am particularly excited about the fact that the new version is using the `marginaleffects` package for the Working with models chapter
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