New preprint! So, what's a multiverse analysis good for anyway?> With @jessicahullman.bsky.social and @statmodeling.bsky.social juliarohrer.com/wp-content/u...

🚨 GAMs have moved on—so it’s time for an update. On March 3, 2026 (17:00–19:00 CET) I’ll be livestreaming an updated introduction to Generalized Additive Models in R 📺 YouTube livestream link: youtube.com/live/A9U8e1K... #RStats #mgcv #GAMs #gratia #statistics 🧪

One of the most important statistical packages made in Econ in the last decade

Things are grim. But in more frivolous news... @jamesbrandecon.bsky.social and I have been chipping away at `dbreg`, a 📦 for running big regression models on database backends. For the right kinds of problems, the speed-ups are near magical. Website: grantmcdermott.com/dbreg/ #rstats [1/2]

Finished teaching my new Advance Stats for Psych graduate course today with a heavy emphasis on both DAGs and shifting away from coefficient interpretation and towards models as prediction machines. Both went great! The latter was extremely helpful for logistic regression (for obvious reasons 😵‍💫)!

My poster got allocated prime real estate at the conference: High traffic, captive audience.

There is a new-ish Python package, moderndid, that implements almost all of the "modern" DiD estimators: github.com/jordandekler...

Look under your tree! 🌲 🎁 There's a major #rstats #rdatatable release waiting! A tremendous thanks to all involved and especially those contributing to some major (performance-maintaining!!) rewrites around the non-API issue. cran.r-project.org/web/packages...

We're doing the final sprint, and I think we're able to send the PDF of the forthcoming Bayesian Workflow book to the publisher in the next two weeks (500+ pages), which would mean it would be published some time next year

Big new blogpost! My guide to data visualization, which includes a very long table of contents, tons of charts, and more. --> Why data visualization matters and how to make charts more effective, clear, transparent, and sometimes, beautiful. www.scientificdiscovery.dev/p/salonis-gu...

Any good ressource for LEARNING PROGRAMMING for students who know NOTHING about programming (really nothing)? It would be great in R/python (final obj. is data analysis). Any help appreciated! Thanks! @andrew.heiss.phd @gmcd.bsky.social @kylefbutts.bsky.social @vincentab.bsky.social

It's happening! Canada launched two programs to recruit international researchers. Canada Impact+ Research Chairs (1 million/yr for 8 yrs +) Canada Impact+ Emerging Leaders. I will do my best to facilitate the process for those interested. Hit me up. www.canada.ca/en/impact-pl...

sorry I'm late! I have at last broken my silence on Pantone's Color of the Year johnpaulbrammer.substack.com/p/cloud-danc...

#rstats It is with profound sadness I heard that my long-time friend and colleague, John Fox passed away this week. He was the author of {car}, {effects}, {Rcmdr}, ... and numerous influential books. I will miss him greatly. www.john-fox.ca

One of the things that has been on my to do list for a very long time, is building a gallery of all of the charts I've made across #TidyTuesday, #30DayChartChallenge, #30DayMapChallenge, and other miscellaneous projects 📊 And it's finally here! Link: nrennie.rbind.io/viz-gallery/ #DataViz #RStats

Coding tip of the day: make sure you leave informative comments in your code

#rstats Please welcome Jarl, a new R linter. Jarl is a CLI tool with extensions in VS Code, Positron, and Zed. It can check thousands of lines of R code in milliseconds. Jarl provides several output formats, a Github Actions workflow, and more. Blog post: www.etiennebacher.com/posts/2025-1...

Our py-econometrics org has a new package: `maketables` is now installable from PyPi! You can create regression tables for PyFixest, statsmodels, linearmodels, and save them as html, latex, or word. github: github.com/py-econometr... docs: py-econometrics.github.io/maketables/

new paper by Sean Westwood: With current technology, it is impossible to tell whether survey respondents are real or bots. Among other things, makes it easy for bad actors to manipulate outcomes. No good news here for the future of online-based survey research

I am very happy that 𝗣𝘆𝗙𝗶𝘅𝗲𝘀𝘁 𝟬.𝟰𝟬.𝟬/𝟬.𝟰𝟬.𝟭 is now available on PyPi! The release includes a few technical changes and exciting new features =)

Look at the distribution of z-values from medical research!

What are the chances of winning by a single vote in an election with 11K voters? It happened last night in our local municipal election!

I just ordered @vincentab.bsky.social 's epic new book Model to Meaning. This project is one of the most exciting recent developments in data science. The book & #rstats / #python package show how to understand your model *within* its real-world context/use case. www.routledge.com/Model-to-Mea...

Question, if you were including something like this 👇in a report or paper, would you label it as e.g. "Table 1" or "Figure 1"? Or something else? (assuming whatever software you're using let's you pick either) #DataViz #RStats

Looks like Christmas came early this year 🤩 @vincentab.bsky.social

Say I wanted ~9k USD to buy out the teaching time of a prof (a brilliant coauthor of mine) so he can work on creating a validated ground truth dataset for a challenging data extraction and labelling task that current public LLMs (e.g. GPT5) have not yet saturated. Who do I pitch?

duckdb-mlpack 0.0.2: mlpack is now a duckdb community extension Bringing mlpack machine learning to duckdb SQL dirk.eddelbuettel.com/blog/2025/10...

I think this is kind of neat and I don't think anyone else has noticed it (I've looked and I can't find anyone who has) osf.io/preprints/so... Maybe I should back off "justification" language, but it's at least a remarkable coincidence. I still think someone else *must* have noticed it...

The recording is now available so that you can confirm that I indeed have a German accent and color-match my outfits with my Zoom background. youtu.be/YL0co26ng-g?...

Look what arrived in the mail today! It's my copy of the pink book of marginaleffects by @vincentab.bsky.social #rstats

"This is a disaster! This paper should be a wake up call." -A.Fowler I looove this podcast. Starts with a brief interview with an author. Then, three super smart hosts launch into a wide ranging discussion of the topic. They don't pull punches. I'm pleased to be on this week! har.rs/493JVn3

UT Dallas is hiring in international politics, emphasis on conflict. jobs.utdallas.edu/postings/30535

Andrew is an amazing, knowledgeable, and dedicated teacher. I bet this is going to be a great class.

{tinytable} 0.14.0 for #RStats makes it super easy to draw tables in html, tex, docx, typ, md & png. There are only a few functions to learn, but don't be fooled! Small 📦s can still be powerful. Check out the new gallery page for fun case studies. vincentarelbundock.github.io/tinytable/vi...

Yesterday evening, I picked these bad boys up from the mailbox. This morning, I’m taking out the recycling.

I'm exited to announce a new resource about making slides with quarto and revealjs. This book is the combination of all the work I have done in this area, reordered and polished up There isn't a lot of new information yet, but this format allows me to add more easily slidecrafting-book.com #quarto

The Pink Book of #MarginalEffects (aka Model to Meaning) ships next week and I've got a backlog of Zoolander memes. Hope you're hungry for some spam in your timeline. #RStats #PyData

"What I take from Aaron is that the best way to be truly productive on the margin, is to try to build for other people and connect them together."

Whoa—my book is up for pre-order! 𝐌𝐨𝐝𝐞𝐥 𝐭𝐨 𝐌𝐞𝐚𝐧𝐢𝐧𝐠: 𝐇𝐨𝐰 𝐭𝐨 𝐈𝐧𝐭𝐞𝐫𝐩𝐫𝐞𝐭 𝐒𝐭𝐚𝐭 & 𝐌𝐋 𝐌𝐨𝐝𝐞𝐥𝐬 𝐢𝐧 #Rstats 𝐚𝐧𝐝 #PyData The book presents an ultra-simple and powerful workflow to make sense of ± any model you fit The web version will stay free forever and my proceeds go to charity. tinyurl.com/4fk56fc8

You're very welcome @vincentab.bsky.social P.S. Check out our preprint on an alternative to staring at coefficients: j-rohrer.github.io/marginal-psy...

Come see our work on using LLMs to track political science research methods at APSA at 4pm today! We find the latest LLMs beat graduate student RAs at extracting information from academic papers

The new {marginaleffects} release for #RStats (0.30.0) comes with two new vignettes: 1. Speed up computation with automatic differentiation (often 10x gains) marginaleffects.com/bonus/perfor... 2. Power analyses with {marginaleffects} and {DeclareDesign}. marginaleffects.com/bonus/power....

This is a paper I really care about. I feel the core message is very important for social scientists in general, and political scientists in particular. "Quantitative Research in Political Science is Greatly Underpowered." (with A+ co-authors)

@dingdingpeng.the100.ci and @vincentab.bsky.social wrote an amazing paper about marginal effects. While preparing my advanced statistics and methods class, I (surprisingly) had fun reproducing their Figure 1, adapting it to their Example 1, and ploting the text and arrows directly using ggplot().

If the average power of a test in a discipline is ~20% and 1% of published results are nulls, then there is almost no plausible way to work out the math so you don’t see absolutely *enormous* amounts of selection on significance. Sig results are always over like 100x favoured

can't wait to listen to this!

🚨 Job Alert U. de Montréal 🚨 Assistant/Associate Prof: Politics or IR of China If that sounds like you and you speak some French, please consider applying for this job. Our dept is ultra-friendly, support is good, and Montréal is amazing! Reach out with any Q?s tinyurl.com/y9trt5va

I'd love feedback on this #marginaleffects WIP. In GLMs with many parameters, the marginaleffects 📦 can get a 5–20x speedup (and better SEs) by calling JAX for automatic differentiation. Try the instructions at this link and let me know if you run into trouble. Thanks! github.com/vincentarelb...