@ulrichatz.bsky.social
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Professor (Asst) at Bocconi U - NYU Stern Center for Sustainable Business - data and sustainability
pinned post!
One more R coding skill for the pile: tidy-r. It includes all the cool new functions of dplyr 1.2! It also hooks into the r-btw MCP server for live docs, or falls back to R help when it's not available. You can install it in one line. 📦
#rstats
#claudecode
#codex
github.com/statzhero/tidy-r-skill
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GitHub - statzhero/tidy-r-skill: An LLM skill for modern tidyverse R using R 4.5+, tidyverse 2.0+, and dplyr 1.2+.
An LLM skill for modern tidyverse R using R 4.5+, tidyverse 2.0+, and dplyr 1.2+. - statzhero/tidy-r-skill
https://github.com/statzhero/tidy-r-skill
5 days ago
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This made me chuckle
@posit.co
#positron
#rstats
about 24 hours ago
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Send me your favorite
#rstats
hex tile. (And also the philosophy around it.)
3 days ago
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One more R coding skill for the pile: tidy-r. It includes all the cool new functions of dplyr 1.2! It also hooks into the r-btw MCP server for live docs, or falls back to R help when it's not available. You can install it in one line. 📦
#rstats
#claudecode
#codex
github.com/statzhero/tidy-r-skill
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GitHub - statzhero/tidy-r-skill: An LLM skill for modern tidyverse R using R 4.5+, tidyverse 2.0+, and dplyr 1.2+.
An LLM skill for modern tidyverse R using R 4.5+, tidyverse 2.0+, and dplyr 1.2+. - statzhero/tidy-r-skill
https://github.com/statzhero/tidy-r-skill
5 days ago
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unlocked new mobile browser tab count
7 days ago
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This is live on the official IRS website and hasn't been fixed in a year.
10 days ago
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Some juicy prizes for an essay.
add a skeleton here at some point
19 days ago
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reposted by
The R Foundation
27 days ago
Opening for a tenure track position in statistical computing:
wirtschaftsuniversitaet-wien-portal.rexx-systems.com/Assistant-Pr...
As dept chair, R Core member Kurt Hornik invites applications from people who could make substantial contributions to
#RStats
, including base R. Deadline Mar 18!
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Job opportunity Assistant Professor, tenure track, qualification agreement at Wirtschaftsuniversität Wien Jobportal
others in Wien
https://wirtschaftsuniversitaet-wien-portal.rexx-systems.com/Assistant-Professor-tenure-track-qualification-agreement-eng-j2682.html
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Estonians were truly ahead of the
#AI
curve: "in Estonia [the Kratt, a golemesque creature] is used as a metaphor for AI and its complexities. For instance, algorithmic-liability law is also called the Kratt law."
en.wikipedia.org/wiki/Kratt
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Kratt - Wikipedia
https://en.wikipedia.org/wiki/Kratt
about 1 month ago
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The
#AI
benchmark that matters
github.com/petergpt/bul...
about 1 month ago
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Vibecoding in
#Rstats
visualized
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about 2 months ago
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New \glitch{}
#latex
command just dropped to freak out your coauthors. Tells exactly how the paper is going.
gist.github.com/statzhero/ea...
about 2 months ago
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reposted by
Davis Vaughan
about 2 months ago
Last week we released dplyr 1.2.0, but we left off something VERY important 🙂 `dplyr::if_else()` and `dplyr::case_when()` are now up to 30x faster and use 10x less memory! We dive into how we achieved these numbers in this new
#rstats
post!
tidyverse.org/blog/2026/02...
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`dplyr::if_else()` and `dplyr::case_when()` are up to 30x faster
dplyr 1.2.0 comes with much faster and more memory efficient `if_else()` and `case_when()` functions!
https://tidyverse.org/blog/2026/02/dplyr-performance/
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is github down?
about 2 months ago
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reposted by
Acyn
about 2 months ago
Child at the podium: “A woo woo woo.” Mamdani: That’s how I felt when we came up with this plan. Together, we will expand the idea of what is possible in our city—and what sounds and noises we can make at a press conference.
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It's also titled: "Olympic ski jumpers to be investigated for ‘injecting penises with acid’"
add a skeleton here at some point
about 2 months ago
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Today, Anthropic released Claude Opus 4.6 with a
#Finance
plugin. I tested it on capitalizing VW's R&D expenses. In one vague prompt I got a full spreadsheet with amortization schedules and ROIC calculations.
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Testing Claude Opus 4.6: Finance Skill – ulrich atz
Can an LLM Capitalize R&D Expenses?
https://statzhero.github.io/ulrichatz/blog/opus-finance.html
about 2 months ago
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`seed(42)` is the new em dash.
2 months ago
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One of the greatest tools for scientific production relaunched:
#Zotero
8.
www.zotero.org/blog/zotero-8/
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Zotero Blog » Blog Archive » Zotero 8
Zotero is a free, easy-to-use tool to help you collect, organize, cite, and share research.
https://www.zotero.org/blog/zotero-8/
2 months ago
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Sure, buddy.
#rstats
#mcp
2 months ago
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📦 I've released an *alpha* version of wrds, an R package that simplifies access to Wharton Research Data Services. 🔗
github.com/statzhero/wrds
This is an alpha release. I'd appreciate feedback on the API design, missing features, or bugs. Open an issue on GitHub or comment here.
#rstats
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GitHub - statzhero/wrds: This R package provides simple functions for accessing data from WRDS. It includes credential management via the system keyring, database tools, and functions for downloading ...
This R package provides simple functions for accessing data from WRDS. It includes credential management via the system keyring, database tools, and functions for downloading generic tables, Compus...
https://github.com/statzhero/wrds
2 months ago
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I looked at the social science–relevant Claude Code skills in this library. They didn’t convince me, and the sample “papers” on the website were even less compelling. But I’m happy to hear success stories and be proven otherwise.
github.com/K-Dense-AI/c...
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GitHub - K-Dense-AI/claude-scientific-skills: A set of ready to use scientific skills for Claude
A set of ready to use scientific skills for Claude - K-Dense-AI/claude-scientific-skills
https://github.com/K-Dense-AI/claude-scientific-skills
3 months ago
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Tired of littering your R code with `na.rm = TRUE`? I put together 📦 tidyna 📦: it masks common R functions so they handle missing values by default. It also catches base R edge cases, like `sum(c(NA, NA), na.rm = TRUE)` returns 0. Feedback welcome!
github.com/statzhero/tidyna
#rstats
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GitHub - statzhero/tidyna: R package tidyna provides drop-in replacements for common R functions that default to 'na.rm = TRUE'
R package tidyna provides drop-in replacements for common R functions that default to 'na.rm = TRUE' - statzhero/tidyna
https://github.com/statzhero/tidyna
3 months ago
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reposted by
R Consortium
4 months ago
Fantastic! $650k awarded via the Research Software Maintenance Fund for “Enabling the Next Generation of Contributors to R”—mentoring new contributors, modernizing R’s dev infrastructure, and strengthening the R Foundation.
r-consortium.org/posts/650K-f...
#rstats
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R Consortium - Enabling the Next Generation of Contributors to R
The Software Sustainability Institute (UK) has awarded a grant of USD $650,000 under the Research Software Maintenance Fund, to the project Enabling the Next Generation of Contributors to R.
https://r-consortium.org/posts/650K-for-R/
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@paulgp.com
this is a useful (and nice!) overview, can the slides be remixed?
paulgp.com/assets/prese...
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https://paulgp.com/assets/presentations/ai-dev-tools-faculty-seminar-nov-2025.pdf
4 months ago
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I drew an "almost perfect circle" with this
#Anthropic
Artifact example. Nothing important,
#AI
just made me laugh.
4 months ago
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reposted by
Bookshop.org
4 months ago
Remember when Amazon held a sale during Independent Bookstore Day in an effort to undercut indie bookstores? We didn’t forget. Support local bookstores during Small Business Saturday and beyond.
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So confident, so wrong. I'm actually not sure why ChatGPT gets this basic
#RStats
behavior wrong.
5 months ago
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reposted by
Bookshop.org
10 months ago
It’s good to see me, isn’t it? 💜✨ Yes, yes, the rumors are true — we are OFFICIALLY launching here on Bluesky! In case you forgot, we’re a place to buy books online where every purchase supports local bookstores, not billionaires. Thanks for being here 🙌🏽
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What is happening? The newest and hottest
#emoji
befuddles
#AI
.
11 months ago
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It is very funny that this is a clip from a famous movie.
m.youtube.com/watch?v=yuOH...
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Hawley–Smoot Tariff - Ferris Bueller's Day Off.
YouTube video by International School History
https://m.youtube.com/watch?v=yuOHbyuanbY
about 1 year ago
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NYT with the deep insights here.
#tariffs
about 1 year ago
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