Davis Vaughan
@davisvaughan.bsky.social
Building tools for R users, these days mostly in Rust 🦀
https://blog.davisvaughan.com
https://github.com/DavisVaughan
https://blog.davisvaughan.com
https://github.com/DavisVaughan
Reposted by Davis Vaughan
It’s not about drugs. If it was, Trump wouldn’t have pardoned one of the largest narco traffickers in the world last month.
It’s about oil and regime change.
And they need a trial now to pretend that it isn’t. Especially to distract from his sinking under Epstein and skyrocketing healthcare costs.
It’s about oil and regime change.
And they need a trial now to pretend that it isn’t. Especially to distract from his sinking under Epstein and skyrocketing healthcare costs.
January 3, 2026 at 3:34 PM
It’s not about drugs. If it was, Trump wouldn’t have pardoned one of the largest narco traffickers in the world last month.
It’s about oil and regime change.
And they need a trial now to pretend that it isn’t. Especially to distract from his sinking under Epstein and skyrocketing healthcare costs.
It’s about oil and regime change.
And they need a trial now to pretend that it isn’t. Especially to distract from his sinking under Epstein and skyrocketing healthcare costs.
Reposted by Davis Vaughan
none of this is legal. none of this is normal. feel free to tell anyone who says otherwise to fuck off.
January 3, 2026 at 4:02 PM
none of this is legal. none of this is normal. feel free to tell anyone who says otherwise to fuck off.
Reposted by Davis Vaughan
Last 2025 post, on @python.org & @carpentries.carpentries.org values, a great @posit.co conf session feat @mchow.com @richmeister.bsky.social @davisvaughan.bsky.social, the magic of #rstats #python dev cultures sharing best practices, and random #rstats history
www.emilyriederer.com/post/py-rgo-...
www.emilyriederer.com/post/py-rgo-...
R + Python: From polyglot to crosspolination | Emily Riederer
A combined reflection on 2025, posit::conf(2025), and the necessity of diversity in open source
www.emilyriederer.com
December 30, 2025 at 9:55 PM
Last 2025 post, on @python.org & @carpentries.carpentries.org values, a great @posit.co conf session feat @mchow.com @richmeister.bsky.social @davisvaughan.bsky.social, the magic of #rstats #python dev cultures sharing best practices, and random #rstats history
www.emilyriederer.com/post/py-rgo-...
www.emilyriederer.com/post/py-rgo-...
Reposted by Davis Vaughan
New Post on @ropensci.org: Better #RStats Code, Without Any Effort, Without Even AI
Edited by @etiennebacher.bsky.social & Steffi LaZerte
Read about:
✨ {lintr} for detecting lints
✨ Air for formatting code
✨ jarl for detecting+fixing lints
✨ {flir} for refactoring
ropensci.org/blog/2025/12...
Edited by @etiennebacher.bsky.social & Steffi LaZerte
Read about:
✨ {lintr} for detecting lints
✨ Air for formatting code
✨ jarl for detecting+fixing lints
✨ {flir} for refactoring
ropensci.org/blog/2025/12...
Better Code, Without Any Effort, Without Even AI
Useful local, free, deterministic tools to improve your code
ropensci.org
December 15, 2025 at 12:28 PM
New Post on @ropensci.org: Better #RStats Code, Without Any Effort, Without Even AI
Edited by @etiennebacher.bsky.social & Steffi LaZerte
Read about:
✨ {lintr} for detecting lints
✨ Air for formatting code
✨ jarl for detecting+fixing lints
✨ {flir} for refactoring
ropensci.org/blog/2025/12...
Edited by @etiennebacher.bsky.social & Steffi LaZerte
Read about:
✨ {lintr} for detecting lints
✨ Air for formatting code
✨ jarl for detecting+fixing lints
✨ {flir} for refactoring
ropensci.org/blog/2025/12...
Reposted by Davis Vaughan
I'm happy to announce arborium, a collection of 96 tree-sitter grammars (so far) that compile cleanly as crates and npm packages, for desktop & wasm.
It comes with themes, two rustdoc integrations, a clean HTML+ANSI highlighter, get it while it's hot:
arborium.bearcove.eu#rust
It comes with themes, two rustdoc integrations, a clean HTML+ANSI highlighter, get it while it's hot:
arborium.bearcove.eu#rust
arborium - Syntax Highlighting Demo
arborium.bearcove.eu
December 14, 2025 at 1:06 AM
I'm happy to announce arborium, a collection of 96 tree-sitter grammars (so far) that compile cleanly as crates and npm packages, for desktop & wasm.
It comes with themes, two rustdoc integrations, a clean HTML+ANSI highlighter, get it while it's hot:
arborium.bearcove.eu#rust
It comes with themes, two rustdoc integrations, a clean HTML+ANSI highlighter, get it while it's hot:
arborium.bearcove.eu#rust
Join us to talk all things R, Python, Positron, Air, tidyverse, and cosmere!
December 11, 2025 at 4:10 PM
Join us to talk all things R, Python, Positron, Air, tidyverse, and cosmere!
Reposted by Davis Vaughan
#rstats Please welcome Jarl, a new R linter.
Jarl is a CLI tool with extensions in VS Code, Positron, and Zed. It can check thousands of lines of R code in milliseconds.
Jarl provides several output formats, a Github Actions workflow, and more.
Blog post: www.etiennebacher.com/posts/2025-1...
Jarl is a CLI tool with extensions in VS Code, Positron, and Zed. It can check thousands of lines of R code in milliseconds.
Jarl provides several output formats, a Github Actions workflow, and more.
Blog post: www.etiennebacher.com/posts/2025-1...
November 20, 2025 at 4:50 PM
#rstats Please welcome Jarl, a new R linter.
Jarl is a CLI tool with extensions in VS Code, Positron, and Zed. It can check thousands of lines of R code in milliseconds.
Jarl provides several output formats, a Github Actions workflow, and more.
Blog post: www.etiennebacher.com/posts/2025-1...
Jarl is a CLI tool with extensions in VS Code, Positron, and Zed. It can check thousands of lines of R code in milliseconds.
Jarl provides several output formats, a Github Actions workflow, and more.
Blog post: www.etiennebacher.com/posts/2025-1...
Reposted by Davis Vaughan
Much thanks to @lionelhenry.bsky.social and @cirw.in for pushing the rust bindings for Jupyter further and making @posit.co's Ark runtime work in @zed.dev! github.com/zed-industri...
Update runtimed to fix compatibility issue with the Ark kernel by lionel- · Pull Request #40889 · zed-industries/zed
Closes #40888
This updates runtimed to the latest version, which handles the "starting" variant of execution_state. It actually handles a bunch of other variants that are not documented i...
github.com
November 13, 2025 at 7:38 PM
Much thanks to @lionelhenry.bsky.social and @cirw.in for pushing the rust bindings for Jupyter further and making @posit.co's Ark runtime work in @zed.dev! github.com/zed-industri...
We are looking for #rstats community feedback on 3 new dplyr functions!
We're aiming to expand the `filter()` family:
- `filter()` to keep rows
- `filter_out()` to drop rows
- `when_any()` and `when_all()` as modifiers
Read more and leave feedback here:
github.com/tidyverse/ti...
We're aiming to expand the `filter()` family:
- `filter()` to keep rows
- `filter_out()` to drop rows
- `when_any()` and `when_all()` as modifiers
Read more and leave feedback here:
github.com/tidyverse/ti...
November 7, 2025 at 4:03 PM
We are looking for #rstats community feedback on 3 new dplyr functions!
We're aiming to expand the `filter()` family:
- `filter()` to keep rows
- `filter_out()` to drop rows
- `when_any()` and `when_all()` as modifiers
Read more and leave feedback here:
github.com/tidyverse/ti...
We're aiming to expand the `filter()` family:
- `filter()` to keep rows
- `filter_out()` to drop rows
- `when_any()` and `when_all()` as modifiers
Read more and leave feedback here:
github.com/tidyverse/ti...
Reposted by Davis Vaughan
TOMORROW, I'm hosting what I'm calling Data Science Lab. This debut session will be our fave Positron settings for #rstats & #python 😍
I called it DS Lounge at first, but that doesn't feel right. You'll see "Lounge" when you register at pos.it/dslab, but future sessions will be "Lab" 🧪😎 #databs
I called it DS Lounge at first, but that doesn't feel right. You'll see "Lounge" when you register at pos.it/dslab, but future sessions will be "Lab" 🧪😎 #databs
November 4, 2025 at 7:06 PM
TOMORROW, I'm hosting what I'm calling Data Science Lab. This debut session will be our fave Positron settings for #rstats & #python 😍
I called it DS Lounge at first, but that doesn't feel right. You'll see "Lounge" when you register at pos.it/dslab, but future sessions will be "Lab" 🧪😎 #databs
I called it DS Lounge at first, but that doesn't feel right. You'll see "Lounge" when you register at pos.it/dslab, but future sessions will be "Lab" 🧪😎 #databs
Reposted by Davis Vaughan
Come hang with me Nov 5th 12PM ET! We'll be chatting with Isabel Zimmerman & Davis Vaughan from Posit about our favorite #Positron settings. New to to the IDE? Come learn! If you're super familiar & have tricks of your own to show, come share! #databs #rstats #python
events.zoom.us/ev/AnxRH-OLd...
events.zoom.us/ev/AnxRH-OLd...
October 24, 2025 at 12:30 AM
Come hang with me Nov 5th 12PM ET! We'll be chatting with Isabel Zimmerman & Davis Vaughan from Posit about our favorite #Positron settings. New to to the IDE? Come learn! If you're super familiar & have tricks of your own to show, come share! #databs #rstats #python
events.zoom.us/ev/AnxRH-OLd...
events.zoom.us/ev/AnxRH-OLd...
We are extremely excited about this!
@lionelhenry.bsky.social did an awesome job shepherding this feature, and we think that both decimal alignment and using commas as "column guides" for your `tribble()` calls makes QC-ing your code easier and less error prone!
@lionelhenry.bsky.social did an awesome job shepherding this feature, and we think that both decimal alignment and using commas as "column guides" for your `tribble()` calls makes QC-ing your code easier and less error prone!
I'm excited to share a new version of the Air formatter for #rstats, with support for tabular formatting! Super useful with `tibble::tribble()` calls or `data.table::fcase()`.
It's currently experimental as we're looking to get feedback on the feature, so please let us know what you think.
It's currently experimental as we're looking to get feedback on the feature, so please let us know what you think.
October 21, 2025 at 12:14 PM
We are extremely excited about this!
@lionelhenry.bsky.social did an awesome job shepherding this feature, and we think that both decimal alignment and using commas as "column guides" for your `tribble()` calls makes QC-ing your code easier and less error prone!
@lionelhenry.bsky.social did an awesome job shepherding this feature, and we think that both decimal alignment and using commas as "column guides" for your `tribble()` calls makes QC-ing your code easier and less error prone!
Reposted by Davis Vaughan
Quarto friends! I need your help:
We are implementing a new QMD parser in Quarto. It will be super nice. But it's a big change, and we want to minimize the impact.
1. Can you share a link to your Quarto project at github.com/quarto-dev/q...
2. repost this and let your Quarto friends know too?
We are implementing a new QMD parser in Quarto. It will be super nice. But it's a big change, and we want to minimize the impact.
1. Can you share a link to your Quarto project at github.com/quarto-dev/q...
2. repost this and let your Quarto friends know too?
Epic: are we production yet · Issue #63 · quarto-dev/quarto-markdown
We need to check against many large sites to get a good sense for the impact of this new syntax in practice. autogenerated qmd quartodoc-generated sites (tbd meet with @machow) sites quarto.org Shi...
github.com
October 16, 2025 at 2:13 PM
Quarto friends! I need your help:
We are implementing a new QMD parser in Quarto. It will be super nice. But it's a big change, and we want to minimize the impact.
1. Can you share a link to your Quarto project at github.com/quarto-dev/q...
2. repost this and let your Quarto friends know too?
We are implementing a new QMD parser in Quarto. It will be super nice. But it's a big change, and we want to minimize the impact.
1. Can you share a link to your Quarto project at github.com/quarto-dev/q...
2. repost this and let your Quarto friends know too?
We optimize for “wtf?!” moments 🙂
Just added Air to the Arrow CI jobs 🪂
It's an R formatter written in Rust, and so fast I genuinely had a "wtf?!" moment the first time I used it.
Would love to see a similar linter; if I had the time, I'd love to try building one - need to get acquainted with tree-sitters one day! 🌳
#rstats
It's an R formatter written in Rust, and so fast I genuinely had a "wtf?!" moment the first time I used it.
Would love to see a similar linter; if I had the time, I'd love to try building one - need to get acquainted with tree-sitters one day! 🌳
#rstats
October 11, 2025 at 1:13 AM
We optimize for “wtf?!” moments 🙂
Reposted by Davis Vaughan
Nothing says Nobel Peace Prize-worthy than an individual leveling threats against Norway if he doesn't get it.
October 10, 2025 at 2:47 AM
Nothing says Nobel Peace Prize-worthy than an individual leveling threats against Norway if he doesn't get it.
Reposted by Davis Vaughan
We all know filter, mutate, summarize, but the #tidyverse has some advanced hidden jems!
Recently a client sent me some code they were using to look up values between 2 tables based on date-times.
I replaced ~100 lines of code* with a single inner_join(by = join_by(overlap())).
Recently a client sent me some code they were using to look up values between 2 tables based on date-times.
I replaced ~100 lines of code* with a single inner_join(by = join_by(overlap())).
I just learned about the `truncate` argument in {lubridate} functions, which means NO MORE HACKY paste0(year, "-01-01") code to build dates when converting years to dates in #rstats
![library(lubridate)
yr <- 2025
# This doesn't work
ymd(yr)
#> Warning message:
#> All formats failed to parse. No formats found.
#> [1] NA
#-------
# TIRED
#-------
# I've done this for *yeeeeears*
ymd(paste0(yr, "-01-01"))
#> [1] "2025-01-01"
#-------
# WIRED
#-------
# The truncated argument tells {lubridate} that it can
# ignore up to 2 (in this case) formats to look for.
# Ordinarily `ymd()` looks for three formats: a year,
# a month, and a day. `truncated = 2` means it can skip
# the month and day parts
ymd(yr, truncated = 2)
#> [1] "2025-01-01"
ymd(c("2025", "2025-10", "2025-10-02"), truncated = 2)
#> [1] "2025-01-01" "2025-10-01" "2025-10-02"](https://cdn.bsky.app/img/feed_thumbnail/plain/did:plc:2zcfjzyocp6kapg6jc4eacok/bafkreihu4f54mnmgtyyl2u6azxu6iqdgjwrcte7hgdmv4cfyevyyexer3i@jpeg)
October 2, 2025 at 6:57 PM
We all know filter, mutate, summarize, but the #tidyverse has some advanced hidden jems!
Recently a client sent me some code they were using to look up values between 2 tables based on date-times.
I replaced ~100 lines of code* with a single inner_join(by = join_by(overlap())).
Recently a client sent me some code they were using to look up values between 2 tables based on date-times.
I replaced ~100 lines of code* with a single inner_join(by = join_by(overlap())).
Reposted by Davis Vaughan
Another delightful #positconf in the books! So lovely to see everyone 🌻 I miss it already!
Especially excited about:
🤖 @minecr.bsky.social’s aifeedr
🌬️ Making my code pretty like @davisvaughan.bsky.social’s with air
✨ @emilhvitfeldt.bsky.social’s editable quarto magic
📈 everything @kjhealy.co said
Especially excited about:
🤖 @minecr.bsky.social’s aifeedr
🌬️ Making my code pretty like @davisvaughan.bsky.social’s with air
✨ @emilhvitfeldt.bsky.social’s editable quarto magic
📈 everything @kjhealy.co said
September 19, 2025 at 2:59 PM
Another delightful #positconf in the books! So lovely to see everyone 🌻 I miss it already!
Especially excited about:
🤖 @minecr.bsky.social’s aifeedr
🌬️ Making my code pretty like @davisvaughan.bsky.social’s with air
✨ @emilhvitfeldt.bsky.social’s editable quarto magic
📈 everything @kjhealy.co said
Especially excited about:
🤖 @minecr.bsky.social’s aifeedr
🌬️ Making my code pretty like @davisvaughan.bsky.social’s with air
✨ @emilhvitfeldt.bsky.social’s editable quarto magic
📈 everything @kjhealy.co said
September 19, 2025 at 1:36 PM
Reposted by Davis Vaughan
I've been using Air since switching to Positron and have been loving it. My only criticism is the styling of tibbles (it just breaks them). Apparently that has been solved
# fmt: tabular
coming soon
#PositConf
# fmt: tabular
coming soon
#PositConf
September 17, 2025 at 7:24 PM
I've been using Air since switching to Positron and have been loving it. My only criticism is the styling of tibbles (it just breaks them). Apparently that has been solved
# fmt: tabular
coming soon
#PositConf
# fmt: tabular
coming soon
#PositConf
Air is our incredibly fast R code formatter!
Come learn all about it at 2:40pm in Regency V in the Sparking Development Joy session!!
We also have hex stickers!
#positconf2025 #rstats
Come learn all about it at 2:40pm in Regency V in the Sparking Development Joy session!!
We also have hex stickers!
#positconf2025 #rstats
September 17, 2025 at 2:55 PM
Air is our incredibly fast R code formatter!
Come learn all about it at 2:40pm in Regency V in the Sparking Development Joy session!!
We also have hex stickers!
#positconf2025 #rstats
Come learn all about it at 2:40pm in Regency V in the Sparking Development Joy session!!
We also have hex stickers!
#positconf2025 #rstats
Can't wait to see everyone at posit::conf(2025)!!
Here's my annual "things to do" list for food, coffee, bakeries, and bars near conf!
#positconf2025 #rstats
docs.google.com/document/d/1...
Here's my annual "things to do" list for food, coffee, bakeries, and bars near conf!
#positconf2025 #rstats
docs.google.com/document/d/1...
atlanta-posit-conf-2025
posit::conf 2025 Hotel Coffee ⭐ I think this looks the most promising, there are other locations that look decent even if this one seems new and has few reviews and is inside another building 7 minu...
docs.google.com
September 13, 2025 at 4:01 PM
Can't wait to see everyone at posit::conf(2025)!!
Here's my annual "things to do" list for food, coffee, bakeries, and bars near conf!
#positconf2025 #rstats
docs.google.com/document/d/1...
Here's my annual "things to do" list for food, coffee, bakeries, and bars near conf!
#positconf2025 #rstats
docs.google.com/document/d/1...
Reposted by Davis Vaughan
Once again, @davisvaughan.bsky.social's extrachecks have saved me from a likely CRAN rejection for an upcoming #RStats package submission. Thanks Davis! github.com/DavisVaughan...
GitHub - DavisVaughan/extrachecks
Contribute to DavisVaughan/extrachecks development by creating an account on GitHub.
github.com
September 3, 2025 at 7:57 PM
Once again, @davisvaughan.bsky.social's extrachecks have saved me from a likely CRAN rejection for an upcoming #RStats package submission. Thanks Davis! github.com/DavisVaughan...
Reposted by Davis Vaughan
We still have spots available for tidyverse dev day on Sept 19: www.tidyverse.org/blog/2025/07.... Please come along to contribute to the tidyverse and have a bunch of fun along the way! It's open to all, but is most convenient if you're coming to posit::conf or live near Atlanta #rstats
Tidyverse developer day 2025
Join us in Atlanta for tidyverse developer day on September 19, 2025!
www.tidyverse.org
August 20, 2025 at 9:57 PM
We still have spots available for tidyverse dev day on Sept 19: www.tidyverse.org/blog/2025/07.... Please come along to contribute to the tidyverse and have a bunch of fun along the way! It's open to all, but is most convenient if you're coming to posit::conf or live near Atlanta #rstats