Version 1.10 of {fetwfe}, my package for difference-in-differences under staggered adoptions, is now available on CRAN: cran.r-project.org/web/packages... Blog post: gregoryfaletto.com/2026/05/23/n... Brief explainer on the package, and description of the updates, in the thread below.

fetwfe: Fused Extended Two-Way Fixed Effects

Calculates the fused extended two-way fixed effects (FETWFE) estimator for unbiased and efficient estimation of difference-in-differences in panel data with staggered treatment adoption. This estimato...

cran.r-project.org

Greg Faletto@gregoryfaletto.com · last yr.

Interested in doing some causal inference over the long weekend? Version 1.5.0 of the {fetwfe} package for difference-in-differences under staggered adoptions is now on CRAN! Details on what's new below: cran.r-project.org/web/packages...

Gonna throw a fit if I don't get 48x points

As many standardized-test-takers know, there are two ways to score highly on a test: learn the material, or guess what the question-writer is thinking. LLMs have gotten really good at the second part!

Grace@gracekind.net · 6mo ago

There’s some cool recent research on this phenomenon! It turns out vision language models excel at image benchmarks *even when the actual images aren’t provided,* because the answers are implicit in the questions! arxiv.org/abs/2603.21687

Oh wow, this is how I'm finding out the transformers finally came for IID data

Gaël Varoquaux@gaelvaroquaux.bsky.social · 6mo ago

The state of the art for learning or tabular data is: arxiv.org/abs/2602.11139 It comes with a high-quality software implementation: tabicl.readthedocs.io/en/latest/

man uses GPT to guide him through sequencing his dying dog's DNA, identifying the mutated genomes, and developing a bespoke cancer mRNA vaccine www.theaustralian.com.au/business/tec...

Can we all agree that naming your ice cream flavor a multisyllable made-up word that includes an intentional misspelling of "mocha" is insufficient notice that it contains a nontrivial amount of caffeine

"We are projecting onto an astral plane of heretofore unknown quality, with perfect genius that God himself could ne'er have foreseen." --an LLM after a couple rounds of iteration to get code that actually runs and does what it's supposed to do

It sort of feels like if you pay $8 million for a 30 second Super Bowl ad, they should throw in the rights to refer to it as the Super Bowl instead of the "big game"

So it seems like one of the highest-leverage things you can do is learn one of VS Code/Positron/Antigravity/Cursor/Windsurf. Because then you pretty much know the rest of them too

As a person who does believe capable AI risks are real, it’s frustrating to see the community not exactly behaving responsibly. If you can’t find it in yourself to say or do something about a literal, present, AI harm (Grok being used for abuse) what is the point of you

"Trust" is an overloaded word and people make a lot of bad decisions because they think, in particular, trusting someone to be honest is the same as trusting them to verify information.

Please enjoy this blog post based on my colleague Kyle Jensen's talk surveying different approaches to AI coding abilities paulgp.com/ai-coding/20...

Confidence interval discussion time! The perfect opportunity to repost this blog post answering the question you haven’t dared to ask: www.the100.ci/2024/12/05/w...

Why you are not allowed to say that your 95% confidence interval contains the true parameter with a probability of 95%

A shibboleth is a custom, such as a choice of phrasing, that distinguishes one group of people from another. The term goes back to the Hebrew Bible, in which the inhabitants of Gilead identify members...

the100.ci

Darren Dahly@statsepi.bsky.social · 10mo ago

This is an education problem, not a tool problem; and we don't want people simply moving from thinking p-values are magic to thinking confidence intervals are.

🌈 The website for the inaugural rainbowR conference is now live! 🎉 🗓️ Save the date: Feb 25th-26th, 2026 📣 Call for submissions is open 👯 We're bringing together LGBTQ+ R users to promote our work and foster connections among community members conference.rainbowr.org

– rainbowR conference

conference.rainbowr.org

📣We're hosting a rainbowR conference, to connect and promote LGBTQ+ people in the #RStats community and to showcase examples of working with LGBTQ+ data 🌈🎉 To help us plan, if you'd be interested in attending or speaking, please fill in this very short form (1-2 mins) docs.google.com/forms/d/1Tx0...

Interested in a rainbowR Conference?

rainbowR (https://rainbowr.org) is hosting a virtual conference (tentative date: February 26, 2026). The aim of the conference is to connect and promote LGBTQ+ people in the R community, and to showca...

docs.google.com

Huh, the spike is actually March 2009, well after the worst of the financial crisis (Lehman Brothers declared bankruptcy in September 2008) trends.google.com/trends/explo...

Shoe@shoe.bsky.social · last yr.

Starting to think a big divide in whether or not people like AI is: "do you do the kind of work where it's much easier to check and fix an 80% reliable solution than it is to just do it yourself from scratch?"

I made a GPT for generating alt text. I made it because I couldn't find one that works the way this one does: you just upload an image and press send and it generates alt text. It follows the W3C Web Accessibility Initiative recommendations. chatgpt.com/g/g-6820994e...

ChatGPT - Alt Text Writer

A conversational AI system that listens, learns, and challenges

chatgpt.com

...so when do I get to try GPT-5? 😥

The way the Bluesky notifications count works, sometimes I log on and think I must have been canceled but it turns out I just got 4 likes and a response on my post

Interested in doing some causal inference over the long weekend? Version 1.5.0 of the {fetwfe} package for difference-in-differences under staggered adoptions is now on CRAN! Details on what's new below: cran.r-project.org/web/packages...

fetwfe: Fused Extended Two-Way Fixed Effects

Calculates the fused extended two-way fixed effects (FETWFE) estimator for unbiased and efficient estimation of difference-in-differences in panel data with staggered treatment adoption. This estimato...

cran.r-project.org

this rules. Haven't taken the plunge to pay for Gemini access, been making the most of my free daily 2.5 Pro prompts for math. The CLI preview access is a super helpful workaround. I just put my prompt in a text file along with the pdf I had uploaded in a question I had asked in the web interface.

Pet peeve: when people say “at random” when they mean “according to a uniform distribution”.

Does anybody know anything about this paper? The results look very interesting. The text implies the proofs are in the supplementary material, but I can't find it online anywhere. arxiv.org/abs/2504.19089

Semiparametric M-estimation with overparameterized neural networks

We focus on semiparametric regression that has played a central role in statistics, and exploit the powerful learning ability of deep neural networks (DNNs) while enabling statistical inference on par...

arxiv.org

Linear regression can be seen as overly simplistic when we have ML models and semiparametric statistical theory to back them up. Linearity often doesn't hold. But linear regression is still useful even in causal inference, where normally we're very cautious about unrealistic assumptions. 🧵

This was the best cereal. They made it a little less sweet than cinnamon toast crunch to balance out the marshmallows

Discontinued Foods!@discontinuedfoods.bsky.social · last yr.

Monopoly: Cereal Edition(2003-2004): Released to celebrate the iconic board game, this cereal consisted of re-purposed Cinnamon Toast Crunch pieces with Monopoly game pieces (car, scotty dog, thimble, etc.) "printed" on them with cinnamon, alongside marshmallows shaped like deeds, houses, and hotels

I'm excited to announce that {fetwfe} is now available on CRAN! cran.r-project.org/web/packages... You can now install {fetwfe} by simply using ```install.packages("fetwfe")```. While preparing the package for CRAN, I also fixed a couple of little bugs and edge cases from the original version.

fetwfe: Fused Extended Two-Way Fixed Effects

Calculates the fused extended two-way fixed effects (FETWFE) estimator for unbiased and efficient estimation of difference-in-differences in panel data with staggered treatment adoption. This estimato...

cran.r-project.org

Greg Faletto@gregoryfaletto.com · 2y ago

NEW R PACKAGE: I created the {fetwfe} package to implement fused extended two-way fixed effects (FETWFE), my estimator for difference-in-difference under staggered adoptions. You can install and use it by following the instructions on GitHub here: github.com/gregfaletto/.... Short thread:

Fully aware I'm touching a hot stove... am I the only one who's not sure that mandating a higher percentage of NIH funds go directly to research instead of overhead is a bad idea? I'm familiar with R1 research environments and how funding works, and I support more funding for basic research.

An increasingly valuable meta-skill (that doesn't require domain expertise) is consistently coming out net-ahead when given information from a source that you know is mostly, but far from 100%, reliable

Peli Grietzer @peligrietzer.bsky.social · 2y ago

We need a name for the 'paradox' where frontier LLMs are useful in domain x if your expertise in domain x go much deeper than theirs and harmful otherwise