Achim Zeileis
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Achim Zeileis
@zeileis.org
1.7K followers 240 following 250 posts
statistics, science, software

https://www.zeileis.org/
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Achim Zeileis @zeileis.org · Oct 2
👋 bsky!

▶️ I just joined - fed up with the bird place for too long. I'll also remain @zeileis@fosstodon.org

📈 I'll post about: statistics, science, software. Often combining all three in my work for Journal of Statistical Software #jstatsoft

🤓 Hope to learn new interesting stuff & meet new people!
Reposted by Achim Zeileis
gsimpson.bsky.social
A new release of the mgcv #RStats 📦 is out on CRAN and Simon Wood (U Edinburgh) has added some significant new features despite the small bump in version number:

🌟 scasm() for estimating GAMs with shape constrained smooths. Can be used with any family & smoothness selection is via the EFS method
Model is: b3 <- scasm( y ~ s(x0, bs = "bs", k= k) + s(x1, bs = "sc", xt = "m+", k = k) + s(x2, bs = "bs", k = k) + s(x3, bs = "bs", k = k), family=poisson, bs=200 ) The second smooth `s(x1) is a shape constrained smooth with a positive monotonicity constraint (xt = "m+"). The `bs = 200` arguments uses 200 boostrap samples, which generates bootstrap distributions for each coefficient in the model. These bootstrap samples respect the shape constraints, while the usual +/- 2 SE credible intervals may not. The uncertainty in the partial effects is shown by two credible interval bands; a dark blue central band is a 68% Bayesian credible interval, while the lighter blue outer interval is a 95% Bayesian credible interval. The background of each panel is light grey with white grid lines, in a similar style to ggplot2's default theme.
November 12, 2025 at 11:28 AM
Reposted by Achim Zeileis
leonido.bsky.social
Das Gespräch gibt es bereits zum Nachhören im Cultural Broadcasting Archive: cba.media/743990
Das politische Gespräch mit Leonhard Dobusch
12.11.2025 - Mit Leonhard Dobusch im Gespräch über die Österreichische Medienlandschaft und Herausforderungen, Kritikpunkte sowie Potenziale.
cba.media
November 12, 2025 at 1:07 PM
Reposted by Achim Zeileis
kjhealy.co
I gave the closing keynote at posit::conf in September and it's available to watch. When you find yourself giving a talk with a little tiny microphone stuck to the side of your head you have to ask yourself some hard questions, but the talk was partly about that.

youtu.be/ZamPCbvBAgE
Trustworthy Data Visualization (Kieran Healy, Duke University) | posit::conf(2025)
YouTube video by Posit PBC
youtu.be
November 7, 2025 at 9:20 PM
zeileis.org
🎨 How to create elegant #dataviz with base #rstats and the #tinyplot pkg

📈 useR! 2025 presentation by Grant McDermott @gmcd.bsky.social

www.youtube.com/watch?v=MOB-...
tinyplot: convenient and customizable base R plots - Grant McDermott
YouTube video by useR! Conference
www.youtube.com
November 4, 2025 at 7:38 AM
Reposted by Achim Zeileis
gmcd.bsky.social
Nice. Looks like my `tinyplot` talk from userR! 2025 is up on YouTube. youtu.be/MOB-QS-vMeY?...

#rstats
tinyplot: convenient and customizable base R plots - Grant McDermott
YouTube video by useR! Conference
youtu.be
October 30, 2025 at 5:57 PM
Reposted by Achim Zeileis
janvanhaaren.be
We're expanding the Club Brugge Football Data Science team. As our Football Data Scientist, you'll work with one of the most advanced analytics infrastructures in football to help management, scouting, and analysis staff turn data into better decisions.

jobs.clubbrugge.be/en/football-data-scientist
Football Data Scientist at Club Brugge
As a Football Data Scientist, you will be responsible for researching and developing advanced models and metrics for analyzing player and team performances and evaluating potential acquisitions for Cl...
jobs.clubbrugge.be
October 30, 2025 at 12:00 PM
zeileis.org
🚨 New CRAN Task View: Anomaly Detection
#rstats #anomalydetection

By Priyanga Dilini Talagala, Rob J. Hyndman @robjhyndman.com, Gaetano Romano

URL: cran.r-project.org/view=Anomaly...
Screenshot of the CRAN Task View "Anomaly Detection" at https://CRAN.R-project.org/view=AnomalyDetection
October 22, 2025 at 10:39 AM
Reposted by Achim Zeileis
brodriguesco.bsky.social
if someone wants to give feedback on a paper i’ll be submitting soon titled "Nix for Polyglot, Reproducible Data Science Workflows" that’d be greatly appreciated!

github.com/b-rodrigues/...
rix_paper/paper.qmd at master · b-rodrigues/rix_paper
Contribute to b-rodrigues/rix_paper development by creating an account on GitHub.
github.com
October 22, 2025 at 8:59 AM
zeileis.org
📢 PSA for colleagues at @uniinnsbruck.bsky.social

📈 New release of #latex and @quarto.org presentation styles in UIBK corporate design

- LaTeX beamer theme with more banners
- Quarto+beamer for PDF
- Quarto+revealjs for HTML
- Code with #rstats and #python

Link: www.uibk.ac.at/de/public-re...
Title page of a slide deck generated with the new Quarto+beamer style files of Universität Innsbruck. The logo of the university is shown in the top left corner. In the center is a banner image that spans the whole width of the slide and shows the view over the Western end of the Inn valley as seen from the Nordkette mountain ridge. Close up on the right-hand side there is a a rocky mountain slope partially covered with white snow. In the distance more mountains with snow-covered tops can be seen. The rest of the slide shows the title and author information (left-aligned) and the CC-BY logo in the bottom-right corner. The information is: PDF Presentations Using the Universität Innsbruck Corporate Design An Implementation via Quarto and beamer Gabriele Mustermann Title page of a slide deck generated with the new Quarto+revealjs style files of Universität Innsbruck. The logo of the university is shown in the top left corner. In the center is a banner image that spans the whole width of the slide and shows students entering the main building of the university. The photo is blurry giving more focus to the seal of the university shown partially on the left-hand side. The rest of the slide shows the title and author information (left-aligned): HTML Presentations Using the Universität Innsbruck Corporate Design An Implementation via Quarto and reveal.js Gabriele Mustermann (Gabriele.Mustermann@uibk.ac.at) https://www.uibk.ac.at/statistics 2025-10-14 The footer line shows the hamburger navigation menu, a small university logo, the footer text "Quarto/reveal.js presentation theme" and the slide number.
October 22, 2025 at 7:52 AM
zeileis.org
💡 Came across this nice tool today:

🎨 qualpal for algorithmically choosing maximally distinct colors under certain restrictions #dataviz

JOSS paper, online tool, R package #rstats

joss.theoj.org/papers/10.21...
Qualpal: Qualitative Color Palettes for Everyone
Larsson, J., (2025). Qualpal: Qualitative Color Palettes for Everyone. Journal of Open Source Software, 10(114), 8936, https://doi.org/10.21105/joss.08936
joss.theoj.org
October 17, 2025 at 9:12 AM
Reposted by Achim Zeileis
dryad.technology
What I'm listening to today: "Olson"

Boards of Canada arranged to play on a DEC PDP-1 from 1959. The PDP-1 doesn't have sound, but it does have front-panel light bulbs for debugging, so they rewired the light bulb lines into speakers to create 4 square wave channels

www.youtube.com/watch?v=wubk...
Boards of Canada "Olson" on a 1959 PDP-1 Computer
YouTube video by Joe Lynch
www.youtube.com
October 12, 2025 at 7:02 PM
Reposted by Achim Zeileis
robjhyndman.com
We're looking for a new actuarial professor. careers.pageuppeople.com/513/cw/en/jo... @monashebs.bsky.social @monashuniversity.bsky.social #actuarial
Job Search
careers.pageuppeople.com
October 3, 2025 at 5:45 AM
zeileis.org
📢 PSA: The R-Forge server is under attack from hackers and hence web access (e.g., for package installation) is currently down. #rstats

The team at WU Wien is working on it. I'll report here when it is back up again.
September 26, 2025 at 4:49 PM
Reposted by Achim Zeileis
datavisfriendly.bsky.social
Where was tinyplot alll my #rstats life?
gmcd.bsky.social Grant McDermott @gmcd.bsky.social · Sep 23
`tinyplot` 0.5.0 is now available from CRAN & R-universe. Alongside bug fixes & internal improvements, this release includes some cool new features like bubble chart + dual legend support, element dodging, & ephemeral themes.

Detailed changelog: grantmcdermott.com/tinyplot/NEW...

#rstats #dataviz
tinyplot bubble chart example with dual legend, using penguins data. Taken from https://grantmcdermott.com/tinyplot/vignettes/gallery.html
September 24, 2025 at 2:37 AM
Reposted by Achim Zeileis
rpodcast.bsky.social
Episode 211 of R-Weekly Highlights is out! serve.podhome.fm/episodepage/...

🏗️ Parse & edit #markdown documents @ropensci.org
🤖 Vibe-coding a package @jonocarroll.fosstodon.org.ap.brid.gy
🏫 R-Exams quality control @zeileis.org

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

#RStats #DataScience
Issue 2025-W39 Highlights
Fresh off an amazing experience at posit::conf(2025), the R Weekly Highlights podcast is back with episode 211! Eric and Mike share their experiences at…
serve.podhome.fm
September 24, 2025 at 12:22 PM
zeileis.org
🚨 PSA for R/exams users.

New StackOverflow post showing how to generate interactive overviews of all your exercise files. In response to the question by @luca-scr.bsky.social #rexams #rstats

stackoverflow.com/questions/79...
Create a document with an overview of all available R/exams exercises
I have several .qmd files with R/exams exercises. I can select a subset and include them in a PDF file using exams2pdf() without any problem. However, I would like to produce a PDF file with all the
stackoverflow.com
September 24, 2025 at 12:20 PM
Reposted by Achim Zeileis
datavisfriendly.bsky.social
#dataviz #StatsSky
A fun new game: dataguessr.com
Place countries in order based on some variable
Dataguessr
Update your knowledge of the world. One quiz at a time.
dataguessr.com
September 23, 2025 at 2:37 PM
Reposted by Achim Zeileis
gmcd.bsky.social
`tinyplot` 0.5.0 is now available from CRAN & R-universe. Alongside bug fixes & internal improvements, this release includes some cool new features like bubble chart + dual legend support, element dodging, & ephemeral themes.

Detailed changelog: grantmcdermott.com/tinyplot/NEW...

#rstats #dataviz
tinyplot bubble chart example with dual legend, using penguins data. Taken from https://grantmcdermott.com/tinyplot/vignettes/gallery.html
September 23, 2025 at 2:41 AM
Reposted by Achim Zeileis
andreassteinmayr.net
Next year, we will host the VfS Annual Meeting in Innsbruck. I look forward to seeing many of you on our beautiful campus in the Alps. #VfS_Conf2026
vfsecon.bsky.social Verein für Socialpolitik e.V. @vfsecon.bsky.social · Sep 22
📢 After the Annual Meeting is before the Annual Meeting! We are very much looking forward to #VfS_Conf2026! Where? @uniinnsbruck.bsky.social
🔗https://www.socialpolitik.de/de/termin/annual-conference-2026
September 22, 2025 at 7:47 AM
Reposted by Achim Zeileis
jonocarroll.fosstodon.org.ap.brid.gy
The latest issue of @rweekly is now live!

https://rweekly.org/2025-W39.html

This week's highlights:
✏️ All the Ways to Programmatically Edit or Parse R Markdown / Quarto Documents by @rOpenSci
🈂️ I Vibe Coded an R Package by @jonocarroll
☑️ Quality Control for Scanned Multiple-Choice Exams by […]
Original post on fosstodon.org
fosstodon.org
September 22, 2025 at 12:17 AM
Reposted by Achim Zeileis
vincentab.bsky.social
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
September 17, 2025 at 7:49 PM
Reposted by Achim Zeileis
andreashandel.bsky.social
I was looking for a way to include quizzes in #Quarto and ended up writing down my thoughts in a brief blog post: www.andreashandel.com/posts/2025-0...
Would love to hear from experts like @andrew.heiss.phd and others if I missed (or misinterpreted) anything 😀
Quizzes and exercises for Quarto websites – Andreas Handel
Andreas Handel personal website.
www.andreashandel.com
February 26, 2025 at 1:53 PM
zeileis.org
📢 New #rexams tutorial: Quality control for scanned multiple-choice exams with nops_fix() in #rstats

- Automatic display of problematic sheets
- Prompting for manual corrections
- Special checks for implausible answer patterns
- Manual review of specific exam sheets

www.r-exams.org/tutorials/no...
Quality Control for Scanned Multiple-Choice Exams
Step-by-step guide to using nops_fix() for fixing problems that occurred during scanning written NOPS exams in R/exams.
www.R-exams.org
September 16, 2025 at 7:09 AM
Reposted by Achim Zeileis
eddelbuettel.com
Every now and then someone is wrong on the interwebs. Every now and then we push back. A few years ago I set up github repo 'ldlasb' ('lies, damn lies, and selective benchmarks'). Today it was time for 'ldlasb2' which contains the note and four charts. #rstats

eddelbuettel.github.io/ldlasb2/benc...
Benchmarking cpp11armadillo and RcppArmadillo: But Correctly This Time
eddelbuettel.github.io
September 11, 2025 at 4:35 PM
Reposted by Achim Zeileis
vincentab.bsky.social
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)
September 11, 2025 at 2:29 AM