Excellent app!

Hey Bike lights It's fall now

Uranus and the Pleiades. 22 September 2025. 🔭 🧪 🎨 #astrophotography #SciArt #photography #StormHour #ThePhotoHour

I tell students: You don’t need to memorize every ML algorithm. But you do need to understand: — loss functions — overfitting — regularization Master the “why,” not just the “how.” #DataScience #MachineLearning #Statistics #AI #RStats

Most companies don’t need deep learning. They need clean joins, honest metrics, and interpretable results. Startups often chase GPU clusters before fixing their CSVs. #DataScience #MachineLearning #AI #RStats

It’s neat to discover that all these #rstats pocket friends and zoom friends I’ve known for years actually *do* exist in real life #PositConf2025

A reminder: When debugging some code and it finally runs and produces output, that doesn't mean the code is now debugged. I myself fell victim to this thinking last week. I am updating my qeML package, with one change involving a nice aspect of k-Nearest Neighbors: 🧵 1/

You can learn more about this project here, only the second of its kind in the United States. grist.org/energy/calif... How this is not being done with much more frequency — in light of our fresh water and drought challenges — is baffling. #energysky #greensky #energytransition

So, April of 2024, i gave keynotes at two separate business and data science industry conferences, and told them exactly this was going to happen: That fixing "AI" mistakes was going to lead to hiring more people to do more work, or paying the original employees to spend time doing it themselves.

Modern Statistics for Modern Biology by Susan Holmes and Wolfgang Huber #RStats https://bigbookofr.com/chapters/life%20sciences.html#modern-statistics-for-modern-biology

I will reveal some secrets during this webinar. Come join us if interested in statistics education research. #statsed

i feel so good rn my history teacher told us to use ai to generate an about me image but instead i spent the whole period doing one myself on canva and i got an a+. she said it was so cool and she didn't even know it was my own work. i will always be better than ai

I use #Rstats or #Python as a calculator a lot, since I always have them up and it's nice to just type numbers in so I don't forget them, but today I didn't realize where my cursor was, and I accidentally typed into chrome without realizing it. Apparently still works as a calculator! 😂 #databs

A referee for a paper that my student and I submitted asked that we do some kind of multiple inference analysis of the simulation output. In teaching my student how to do this, I thought I might as well write it up as a web tutorial. I've now done so, at matloff.github.io/MultCIs/Mult...

Gonna start asking university admin what “AI skills” are, like specific examples “Oh, we need to teach ‘AI skills’ to prepare students for the workplace? Like what. Describe an ‘AI Skill’ to me in detail. What’s involved?”

Noor Shaker is a computer scientist and biotech entrepreneur who aims to make drug discovery faster and more effective by blending experts’ chemistry knowledge with advanced machine learning techniques. adalovelaceday.subst...

I’ve been gradually leaning into “biostatistician” as my identity, rather than just generalist statistician. While I’m always happy to work on any kind of statistical or data problem, my way of thinking is strongly influenced now by epidemiology, clinical trials & other health research

I know the issue of routine covid-19 vaccination for children without a particular need has become entrenched in the culture war in USA, but in other countries it is quite mainstream for experts to recommend against it. Eg Australia: immunisationhandbook.health.gov.au/contents/vac...

Issues of typical interest are all ideological, don't you agree? Say climate change, abortion, trans rights etc. Among my interests is immigration policy, esp. economic aspects. I can tell from just looking at the authorship of a paper whether the content is pro or con. Both sides are ideologues.

Early in my career, I focused on model performance. Now I focus on clarity. If a stakeholder can’t understand what a model does, they won’t trust it—no matter the AUC. Transparency is not a feature. It's a requirement. #DataScience #MachineLearning #AI #RStats

Now on CRAN, ggdiagram is a #ggplot2 extension that draws diagrams programmatically in #Rstats. Allows for precise control in how objects, labels, and equations are placed in relation to each other. wjschne.github.io/ggdiagram/ar...

Tillamook Bay, Oregon

White sands New Mexico

4/5 As an extreme example, you can plot the analemmas for noon and see that it's below the horizon for part of the year in the arctics: this is when those latitudes are in the long polar night! (the crazy looping around latitude = 0 is just from a singularity due to the spherical-to-rect projection)

This video from Fairmount Bagels in Montreal from their Instagram is the most impressive thing I've ever seen

#rstats #statistics I've released my new open source book, "Powered by Linear Algebra: the role of matrices and vector space in data science," at matloff.github.io/WackyLinearA.... Turns the classic LA course on its head! Still proves the theorems, but with a deep emphasis on applications.

I had a blast at #useR2025. Here are my slides on `tinyplot`. grantmcdermott.com/tinyplot/vig... (Rendering of the title slide is a bit off on mobile. I'll fix when when I get sec.)

anyways i routed my morning walk past CDC this morning, and there was a bullet hole in the window by my old cubicle. that was a weird feeling!

I have now been asked 3 times by the same journal to review the same paper (I have declined each time). I even took the time to tell the editors I wouldn't review it as I've already reviewed & rejected it for another journal. How much is enough? 😥 #AcademicSky

If you're doing R and you're building anything you want to share with others or even just re-use across projects, it's really really easy to turn it into a package. If you've never done it before, take a couple functions and take one hour to figure it out, you'll thank me later. #rstats

I've expanded my tinyplot tutorial, adding more datasets and examples and inserting boxed Tips. Also, I've added guidance on how to make interpretable plots; those who are relatively new to statistical graphics may find this useful. matloff.github.io/Tinyplot-Tut...

Pleased to announce the first test of the Little Minnesota bike/run route. In 23 miles, it creates the outline of Minnesota, and is longer than either the Little Wisconsin or Little Illinois in Milwaukee and Chicago respectively.

you know the world is ending when Summers is supporting a woman in STEM

It’ll take lots of efforts to convince me away from LaTeX! But I’m 💯 in for LaTeX in quarto! (or rticles) I’ll just admit that it’s so difficult to make quarto slides look pretty… what a shame. The more than my beamer slides for teaching are, well, arts! Seriously!

I've heard enough people claiming that debiased ML is inherently causal to think that winter is already here

As I mentioned the other day, I'm very impressed with the new package tinyplot, and it will be my main graphics package going forward. When I start using a new pkg, I sometimes write up a tutorial, which I've now done for tinyplot, matloff.github.io/Tinyplot-Tut...

There have been a couple of announcements here in BlueSky about a new graphics pkg, tinyplots. I've replied to the posts by saying looks like a very nice package. I've now tried it, and like it very much. I intend to use it in my own packages going forward. Here I will a mini-tutorial. 🧵1/1

#rstats #quarto Quarto gotchas! I've enjoyed using Quarto the last few months, especially for my forthcoming book on linear algebra in data science. But it's been annoying to deal with bugs in the product. Quarto must still be regarded as beta (and maybe always will). I'll list a few issues. 🧵 1/

it's crazy that there's apparently nobody with the authority to correct the confusion of AI as "programming meant to imbue a character with seeming intelligence" versus AI as "statistical models that give outputs to prompts" neither of which is AI in the popular science fictional sense

#TodayinHistory #dataviz #Onthisday #OTD 📊 🎂Jul 27, 1777 Heinrich Wilhelm Brandes born in Groden near Ritzebüttel 🇩🇪 1816: Invented a prototype for the modern weather map, using data collected over several decades.

Woohoo, I have page proofs for my book!

The face of an old woman who has her first novel being published in the spring

It's #Stunday. This image was made in complete darkness. The light is from the city of St. Marks just a few miles away. The exposure is 20 seconds which softens the clouds and makes it look like a painting. #Photography #landscape #clouds #astrophotography #EastCoastKin #longexposure

The planet Jupiter glowing in thermal infrared, as seen by the Gemini North telescope. The gas giant gives off more heat than it receives from the Sun. Credit: International Gemini Observatory​/​NOIRLab​/​NSF​/​AURA M.H. Wong

Springer Nature to retract machine learning book following Retraction Watch coverage retractionwatch.com/2025/07/16/s...

🚨 When women aren’t offered technical roles, they stop seeing themselves in them. New research shows how biased opportunities don’t just limit careers—they reshape ambition. Full Q&A with the lead researcher: news.ubc.ca/2025/07/tech... #STEM #GenderEquity

🎨 Excited to release diffuseR - an R implementation of the diffusers library! ✨ txt2img and img2img generation 🚀 No Python dependencies 📦 SDXL & SD2.1 models. More coming soon! What will you create? #RStats #AI