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Luis D. Verde Arregoitia

@liomys.mx
1.1K followers 446 following 204 posts

🇲🇽 - macroecology, evolution, conservation, spatial. #rstats, data. mammalogist. tidyverse and 🔨 instructor

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Luis D. Verde Arregoitia @liomys.mx · 01/10/2026
Table of departure times like at an airport but using object classes and file formats as origins and destinations
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Luis D. Verde Arregoitia @liomys.mx · 18/09/2026
More art from the talk
Sketch of a dog with three toys
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Luis D. Verde Arregoitia @liomys.mx · 16/09/2026
Gave my talk "Can I offer you a nice IDE in this trying time?" at #positconf earlier today and it went well slides here: luisdva.github.io/rstats/posit...
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Luis D. Verde Arregoitia @liomys.mx · 11/09/2026
Spotted at #RSEcon and foreshadowing #positconf
Street view in the uk
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Luis D. Verde Arregoitia @liomys.mx · 04/09/2026
Wrapped up a productive #rstats R-project sprint 2026 yesterday Cool people contributing to R over three days and lots of work done
Collage of six photos taken during a hackathon event
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Luis D. Verde Arregoitia @liomys.mx · 10/06/2026
📦 overlay was recently mentioned by @rfortherestofus.com, so I thought I'd share a recent example from teaching. Combining ggpath for background images in plots with overlay to add the code for the special legend - created with legendry #rstats
2D scatterplot with a photo of a highway for a background, with some of its underlying plotting code overlaid on top
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Luis D. Verde Arregoitia @liomys.mx · 23/05/2026
💻 RStudio addins now run in Positron through the command palette, including the addins from my annotater package (despite relying heavily on the rstudioapi pkg for modifying open files!) Nice! #rstats
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Luis D. Verde Arregoitia @liomys.mx · 06/05/2026
made this before the latest in credit caps, price hikes, and token-hungry agents. relevant once more
villain from the movie Mad Max with the text "Do not, my friends, become addicted to LLM tokens. They will take hold of you, and you will resent their absence."
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Luis D. Verde Arregoitia @liomys.mx · 01/05/2026
example showing code as an image and its output. photo by Robin Canfield/unsplash
photograph of a howler monkey on a tree with two transparent overlays: a snippet of code and a barplot of body size distrubutions
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Luis D. Verde Arregoitia @liomys.mx · 29/04/2026
📦 new #rstats package to overlay ggplot2 plots, gt tables, or code snippets onto images, with optional perspective warp and transparency. 🪄powered by magick luisdva.github.io/overlay/
Photo of a beach with some buildings, overlaid with a map and a table with weather averages for Dakar Senegal
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Luis D. Verde Arregoitia @liomys.mx · 22/04/2026
In good company 😅😎 from Fishman et al. 2026 doi.org/10.1080/2327...
screenshot of a publication with the text:
FAIR principles (Wilkinson et al., Citation2016), and data management practices for statistical analyses (Broman & Woo, Citation2018; Ellis & Leek, Citation2018; Verde Arregoitia et al., Citation2018). In general, the standards and data convention policies involve developing consistency in file formatting (e.g., date inputs, variable naming conventions, non-numeric missing data codes) and data packaging (e.g., creation of a data dictionary, readme file, methods documents, and missing data descriptions)podcast meme of boy talking to poster
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Luis D. Verde Arregoitia @liomys.mx · 07/04/2026
overlay ggplot or gt objects on images using 🪄magick - includes perspective warping and transparency work in progress, will put the package on GH once it works better and/if there's any interest in this #rstats
photo of three penguins standing on snow. with a table and a plot overlaid on top
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Luis D. Verde Arregoitia @liomys.mx · 01/04/2026
📦 {hexsession} is now: - On CRAN - 400x faster Create interactive html tiles (or static snapshots) of images or package logos for presentations, websites, or just for fun #rstats hexsession.liomys.mx
hexagonal tile of colorful R package logos
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Luis D. Verde Arregoitia @liomys.mx · 09/03/2026
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villain from mad max fury road, with the caption "Do not, my friends, become addicted to LLM tokens, They will take hold of you and you will resent their absence"
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Luis D. Verde Arregoitia @liomys.mx · 31/01/2026
R (el lenguaje de código abierto) y RStudio (el IDE de Posit) son cosas distintas, pero en muchos países de habla hispana usamos los términos indistintamente. Escribí sobre este fenómeno lingüistico/cultural, considerando la adopción (o no) de Positron luisdva.github.io/rstats/RRstu... #rstats
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Luis D. Verde Arregoitia @liomys.mx · 11/12/2025
🔦 new `focus` argument added to {hexsession}. Specify packages to highlight by dimming all the others. also suggested by @emilhvitfeldt.bsky.social and inspired by @kellybodwin.com's hex shirt with dimmed logos. example below uses dark mode hexsession.liomys.mx
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Luis D. Verde Arregoitia @liomys.mx · 03/12/2025
includes cute ecomorph drawings in my typical style
black white hand-drawn rats and mice
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Luis D. Verde Arregoitia @liomys.mx · 28/11/2025
🔦 added a 'highlight_mode' to hexsession. Dim all images except the one hovered over. Thanks to @emilhvitfeldt.bsky.social for the idea! hexsession.liomys.mx #rstats
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Luis D. Verde Arregoitia @liomys.mx · 27/09/2025
🤖 Big update to the LLMs + R guide > 10 packages added plus other tools and interested reads luisdva.github.io/llmsr-book/ As usual, all the content is available in English and Spanish. #rstats
screenshot of the guide's news section with the following updates:
### Latest updates (September 2025):

#### R packages
- `contextR`, conversational memory for LLM workflows
- `kbretrieveR` for working with AWS Knowledge Bases
- The R Language Analysis Suite (text,talk & topics)
- `LLMR`, a general interface
- `myownrobs`, AI coding agent for RStudio
- `air`, an AI coding helper
- Format and complete few-shot prompts with `promptr`
- LLM-powered chatting in Shiny with `shinychat` and `querychat` 

#### Other tools and extensions  
- Databot, an EDA assistant for Positron
- R instructions for Cursor Users

#### Helpful reads
- ellmer deep dive - Howard Baik
- On hallucinations - Cosima Meyer
- LLM workshop materials from posit::conf 2025
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Luis D. Verde Arregoitia @liomys.mx · 21/09/2025
This was only shared on the #positconf2025 Discord, but Mila the floppy pup was also accepted for pawsit conf 2025
A dog with a shirt next in a flyer for a ficticious conference
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Luis D. Verde Arregoitia @liomys.mx · 21/09/2025
Two crazy dudes that did: ✅ R Dev Day at #RSEcon2025 ✅ tidyverse Dev Day at #positconf2025 a week later My patches and PRs need more work but @shikokuchuo.net got so much done 💪
Two men standing next o a gong
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Luis D. Verde Arregoitia @liomys.mx · 18/09/2025
Conf contest prize with an extra surprise 😃 #positconf2025
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Luis D. Verde Arregoitia @liomys.mx · 03/09/2025
Two weeks to go 😬 I'll be presenting on the fun work I've been doing on spreadsheets + R #rstats #positconf
A square flyer with the text "I'm speaking at posit conf 2025" Atlanta
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Luis D. Verde Arregoitia @liomys.mx · 14/08/2025
Me at dev day during #user2025 with @edavidaja.com and @vincentab.bsky.social
Three children sitting on a sofa holding video game controllers. One of the controllers is unplugged.
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Luis D. Verde Arregoitia @liomys.mx · 10/08/2025
As usual: dogs + stickers + css + R #user2025
Person on stage presenting a slide with dogs
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Luis D. Verde Arregoitia @liomys.mx · 09/08/2025
Come find me if you're at #user2025 and want some stickers (including my purrr counterfeits)
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Luis D. Verde Arregoitia @liomys.mx · 02/07/2025
The slides and recording for my talk "LLMs in the R space" at the last R-Ladies Gaborone monthly meetup are now linked in the LLMs+guide luisdva.github.io/llmsr-book/c... Thanks again to @simisani.bsky.social, @rladies.org and all the attendees :)
screenshot of a slide deck embedded in a website. the slide has a dog with five puppies
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Luis D. Verde Arregoitia @liomys.mx · 07/06/2025
💯 cc @jdlong.cerebralmastication.com
Domino effect demonstration. Bottom text says 'JD Long seeding StackOverflow with questions about R in 2008', top text is 'LLMs can write decent code'
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Luis D. Verde Arregoitia @liomys.mx · 02/04/2025
🇲🇽 Lista la versión en español de la guía para usar herramientas y librerías de LLM en R. Todo el contenido está traducido y la guía ya es 100% bilingüe luisdva.github.io/llmsr-book/e...
screen recording of the linked website being toggled between english and spanish
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Luis D. Verde Arregoitia @liomys.mx · 28/03/2025
my 'LLM tools for #rstats' guide now has a whole section on 🐍Python (as well as other minor updates to keep up with the fast-moving field) luisdva.github.io/llmsr-book/
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Luis D. Verde Arregoitia @liomys.mx · 21/03/2025
Sharing my "Large Language Model tools for R" guide with updates after new developments and a mention in the posit blog. luisdva.github.io/llmsr-book/ - ggpal2 - pangoling - more curated reading materials on coding with LLMs # rstats
screenshot of the landing page on the site "Large Language Model tools for R". shows two screencaps from the simpsons
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Luis D. Verde Arregoitia @liomys.mx · 21/03/2025
🌊🌎 Navigating ecosystem services trade-offs: A global comprehensive review new publication with the conservation and human well-being lab (LabCBH) rdcu.be/eexU7
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Luis D. Verde Arregoitia @liomys.mx · 17/02/2025
updated with {hellmer}, {tidychatmodels}, {pal} rebranded to {chores}, categorized packages, and more tutorials
Table of contents for the linked post:

    2.1 General interfaces
    2.2 Ollama-based tools, wrappers and helpers
    2.3 Unit testing helpers
    2.4 mlverse
    2.5 ellmer and friends
    2.6 RAG tools
    2.7 Computer Vision
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Luis D. Verde Arregoitia @liomys.mx · 14/02/2025
Turned the old blog post of LLM-based tools for #rstats into a Quarto guide. Includes even more packages now plus a roundup of relevant courses and tutorials luisdva.github.io/llmsr-book/
screenshot of the linked website, shows the landing page that includes a cover image made from Simpsons screencaps and some software logos below
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Luis D. Verde Arregoitia @liomys.mx · 01/02/2025
Finally added rudimentary sorting of logos in color space to {hexsession}, inspired by the photo of @hadley.nz's collection in the tidyverse history article #rstats hexsession.liomys.mx hadley.github.io/25-tidyverse...
photograph of hexagonal sticker laid out on a surfacehexagonal tile of software logos
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Luis D. Verde Arregoitia @liomys.mx · 28/01/2025
more friends joining the #rstats + LLM toolkit this week * Retrieval-Augmented Generation in R w/ {ragnar} * {tidyllm}, a pipe-friendly interface for multiple models * LLM powered computer vision w/ {kuzco} Summary here: luisdva.github.io/rstats/LLMsR/
hexagonal tile of 12 package or software logos
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Luis D. Verde Arregoitia @liomys.mx · 20/01/2025
new week, new packages and tools in the LLM + #rstats space {gander} joins the family and has a very cool logo luisdva.github.io/rstats/LLMsR/
hexagonal tile with 10 package logos
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Luis D. Verde Arregoitia @liomys.mx · 14/01/2025
🔎 Exploring data from posit::conf() for this week's #TidyTuesday Who presented in 2023 AND 2024? * % time spent making the tile chart = 20 * % time spent dealing with text encodings to preserve 'ü's = 80 Code here: gist.github.com/luisDVA/6eaa... #rstats #dataviz
tile chart with speaker names and color coding to indicate presentation at two different events
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Luis D. Verde Arregoitia @liomys.mx · 09/01/2025
updated my 2024 roundup of cool ways to work with LLMs in R - ollamar - copilot now has free tier - elmer renamed to ellmer #rstats luisdva.github.io/rstats/LLMsR/
hexagonal tile of software logos
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Luis D. Verde Arregoitia @liomys.mx · 09/01/2025
forgts was mentioned in today's Posit Data Science Hangout, so sharing this again convert formatted spreadsheets to gt objects #rstats luisdva.github.io/forgts/
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Luis D. Verde Arregoitia @liomys.mx · 09/12/2024
the use case I had in mind when I created 📦 forgts: embedding a (small) formatted spreadsheet as a gt in an #rstats Quarto presentation luisdva.github.io/forgts/
screenshot of an R code block that calls forgts::forgts("videogames.xlsx")screenshot of a spreadsheet with meaningful formattingscreenshot of a gt with colors and formatting
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Luis D. Verde Arregoitia @liomys.mx · 28/11/2024
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Luis D. Verde Arregoitia @liomys.mx · 27/11/2024
pixel art from an xlsx file converted into a gt with a single line of code #rstats luisdva.github.io/forgts/
pixel art of the pokemon pikachu drawn as cells in a table
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Luis D. Verde Arregoitia @liomys.mx · 27/11/2024
🐕 📸 - get dog photos from an API with httr2 and purrr - batch process with magick - arrange in a responsive tile - embed in latest #rstats blog post luisdva.github.io/rstats/dogti...
tile of dog photos in back and white
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Luis D. Verde Arregoitia @liomys.mx · 22/11/2024
finally added support to 📦hexsession for working with paths to local images (they don't even need to be hexagonal 🤣) and optional urls #rstats hexsession.liomys.mx
tile of hexagonal images of software packages and dogs
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Luis D. Verde Arregoitia @liomys.mx · 17/11/2024
📦 Brief post about two #rstats packages I released during the past month luisdva.github.io/rstats/new-p...
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Luis D. Verde Arregoitia @liomys.mx · 15/11/2024
new #rstats package: forgts Take a spreadsheet with formatting and produce a gt, keeping the cell and text formatting luisdva.github.io/forgts/ try it out and help me improve on it!
screenshot of a colorful spreadsheetscreenshot of a gt table with formatted cells and texthex logo for the forgts package
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Luis D. Verde Arregoitia @liomys.mx · 11/11/2024
Presentación del sábado en #Nerdearla 🇲🇽 💬 Ciencia de datos multilenguaje en un solo IDE de nueva generación (grabación y materiales disponibles pronto)
presenter on stage holding a microphone
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Luis D. Verde Arregoitia @liomys.mx · 11/11/2024
option for working with arbitrary sets of (installed) packages now working properly after some fixes over the weekend #rstats luisdva.github.io/hexsession/
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Luis D. Verde Arregoitia @liomys.mx · 29/10/2024
#LatinR2024 Tutorial en inglés para trabajar con grandes datos en R con Arrow y DuckDB ⚡ Agenda: 🗓️ 19 de noviembre 🕜 10:00 - 12:00 (UTC-3) 🖥️ VIRTUAL Imparte: François Michonneau
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