Vincent Arel-Bundock

Vincent Arel-Bundock

@vincentab.bsky.social

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

6.5K followers1.3K following1.2K posts

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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

Hi all! I'm looking for people to try out my new collaborative writing platform. Think: Overleaf or GDocs for Mkdown LaTeX HTML Typst Quarto Free, open source, and full-featured. Many editors, chat, comments, track changes, history, AI, mobile, templates, etc Would ❤️ any feedback! librepaper.org

How should we track human decisions in the kind of data science project that Alex envisions, and how can we ensure LLMs implement our decisions faithfully? One idea would be "Data Analysis Decision Records" What do you think? I'd love any feedback on #DADR ! vincentarelbundock.github.io/dadr

vincentarelbundock.github.ioDADR - DADRData Analysis Decision Records: a file-first format for capturing the choices behind an empirical analysis.
Alexander Wuttke@kunkakom.bsky.social

Perhaps the future of data science coding will be a continuous conversation with coding agents who present us with a series of analytical and coding decisions. We decide, they implement. (And, if we take our work seriously, we then review their implementation.)

And here's the website link: vincentarelbundock.github.io/mosaic/

vincentarelbundock.github.ioMosaicTree-based slide grids and incremental reveals for Typst.
Vincent Arel-Bundock@vincentab.bsky.social

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!

Vincent Arel-Bundock reposted

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.

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!

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

Vincent Arel-Bundock reposted

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

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Websites Typst can do everything: articles, letters, notebooks, reports, sites, blogs, docs, etc. Calepin turns a folder of .typ files into a complete static site: Navigation, search, feeds, themes, dark mode, blog listings, galleries, etc. Note: The Calepin website was written with Calepin! 5/6

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Calepin gives you Typst-native notebooks and websites. No need to mix languages, "declare" code as Typst using special fences, or learn yet another ad hoc Markdown extension. No lossy Pandoc layer. Just the simplicity and power of Typst. 3/6

Notebooks Calepin scans your document and executes code chunk in almost any language (Python, R, Julia, bash, or any Jupyter Kernel). Then, it injects the output back at its original call site before rendering. You can also draw diagrams in a bunch of languages, such as Mermaid or Tikz. 4/6

Why Typst? Because it's a joy to write in. The syntax is simple and readable, yet manages to be incredibly powerful and expressive. And it's FAST! You can render professional looking documents in milliseconds. That means *instant* preview. 2/6

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

Vincent Arel-Bundock reposted

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.

Julia M. Rohrer@dingdingpeng.the100.ci

Good news everyone 🥳 Our (w @vincentab.bsky.social) primer on models as prediction machines (with the marginaleffects package) is finally officially published!> journals.sagepub.com/doi/10.1177/...

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.

Daniel Gorelick@danielgorelick.bsky.social

Paying peer reviewers works. Expanded Fast & Fair experiment @biologyopen.bsky.social: • 5.5 vs 37.7 working days to decision with reviews • ~3 vs ~9 reviewer invitations per manuscript • no reduction in editor-assessed review quality • similar acceptance rates www.biorxiv.org/content/10.6...

Vincent Arel-Bundock reposted

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

Julia M. Rohrer@dingdingpeng.the100.ci

One thing that just keeps giving is @vincentab.bsky.social's marginaleffects package (see marginaleffects.com). It's just a complete game changer, moving from "trying to discern what model coefficients tell you after careful recoding" to "you know what, just compare these slopes, thx"

WARNING: This is very early alpha experiment. I would LOVE it if you could tell me what works and what doesn't. Also, if you know how I could make permissions tighter, while maintaining functionality, I'd be very interested! 2/2

Next week!

Statistical Horizons@stathorizons.bsky.social

Leverage the power of statistical models to deliver clear & compelling insights w/ confidence in "Interpreting & Communicating Statistical Results w/ #Rstats" w/ @vincentab.bsky.social on May 28-29. Learn to illustrate your findings & create reproducible reports to convey results.

Vincent Arel-Bundock reposted

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/