José M. Sallán | Lightnews

Jose M Sallan

@jmsallan.bsky.social

40 followers 85 following 16 posts

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Jose M Sallan @jmsallan.bsky.social · Sep 21

Aesthetics evaluation control in #ggplot #Rstats
jmsallan.netlify.app/blog/aesthet...

Aesthetics Evaluation Control in ggplot

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Reposted by José M. Sallán

Robert (Bob) Kubinec @rmkubinec.bsky.social · Aug 15

My Quarto #rstats tip for big/complex papers is to set up R scripts that do data processing/modeling & save plots/outputs as RDS files. The Quarto can then load the RDS file & make any modifications to the ggplot2 object before plotting. This avoids unwieldy long Quarto docs /w complex caching.

Jose M Sallan @jmsallan.bsky.social · Jun 20

Impact of COVID Lockdowns on Barcelona Air Quality
jmsallan.netlify.app/blog/2025-06...
#rstats

NO2 measured at different stations during lockdowns and in similar periods in 2021-2024.

Reposted by José M. Sallán

Julius Kölzer @juliusk.bsky.social · May 17

If you see emojis in my R code, it definitely wasn’t ChatGPT, it was me, because I’m cool and young

Jose M Sallan @jmsallan.bsky.social · May 15

In predictive modeling, we use spatial resampling to evaluate how the model performs in different regions of the space. Here is an example with spatialsample in the #tidymodels framework.

jmsallan.netlify.app/blog/spatial...

values of sensitivity in different spatial clusters

Reposted by Derrick L. Cogburn

Jose M Sallan @jmsallan.bsky.social · May 9

Here is an example of explainable machine learning models (decision tress, random forests and regression) using the #tidymodels #Rstats framework in an important problem: predicting cat adoption:

jmsallan.netlify.app/blog/explain...

Explainable Machine Learning Models

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Reposted by José M. Sallán

Michael Friendly @datavisfriendly.bsky.social · May 2

#TodayinHistory #dataviz #Onthisday #OTD 📊
💀May 1, 1772 Gottfried Achenwall died in Göttingen, Germany 🇩🇪

1748: First use of the term "statistik,'' meaning numbers of the state. Some call him the 'father of statistics'
bit.ly/4m2w3O8

Gottfried Achenwall - Wikipedia

bit.ly

Reposted by José M. Sallán

biblioklept @biblioklept.bsky.social · Apr 13

Lucky day | Stray thoughts on the announcement of Thomas Pynchon's novel Shadow Ticket biblioklept.org/2025/04/12/l...

Lucky day | Stray thoughts on the announcement of Thomas Pynchon’s novel Shadow Ticket

For about a decade, a common social media joke (common enough among a certain stripe of nerd) has run something like, Thomas Pynchon seems to be writing the U.S.A. reality right now; another common…

biblioklept.org

Reposted by Mark E. Schaffer, Peter Campbell, Miguel Á. Malo , and 3 more Mark E. Schaffer, Peter Campbell, Miguel Á. Malo, José M. Sallán, Todd M. Gureckis, Andrea Ballatore

David D. Levine @daviddlevine.com · Apr 12

LLMs hallucinating nonexistent software packages with plausible names leads to a new malware vulnerability: "slopsquatting."

LLMs can't stop making up software dependencies and sabotaging everything

: Hallucinated package names fuel 'slopsquatting'

www.theregister.com

Jose M Sallan @jmsallan.bsky.social · Feb 7

Plotting age pyramids with ggplot #rstats

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A faceted plot of four age pyramids for Catalonia from 1991 to 2011.

Reposted by José M. Sallán

Pynchon Names @pynchonnames.bsky.social · Jan 8

Richard M. Zhlubb

Reposted by José M. Sallán

Gaddis’s Ghost Coat @gaddisghost.bsky.social · Dec 12

A rare colour photo graph of a young Samuel Beckett.

Reposted by José M. Sallán

Pynchon Names @pynchonnames.bsky.social · Dec 11

Oedipa Maas

Reposted by José M. Sallán

Gaddis’s Ghost Coat @gaddisghost.bsky.social · Nov 30

An early draft of CRASH by JG Ballard, circa 1971.