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Dan Chaltiel

@danchaltiel.bsky.social

110 followers 220 following 83 posts

R nerd, developer of the {crosstable} package. Biostatistician (PharmD, PhD) in clinical cancer research. https://github.com/DanChaltiel

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Dan Chaltiel @danchaltiel.bsky.social · Feb 7

Hey #Rstats!
Tired of manually adding @importFrom all over your 📦 #Rpackage?
Say hello to {autoimport}, now on CRAN! 🚀
It parses your code and adds the necessary tags automatically, at the function or package level.
Less typing, more coding! 🔥
github.com/DanChaltiel/...

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Dan Chaltiel @danchaltiel.bsky.social · 11d

I think you nailed it, "I need to spend less time with my computer and more time with people." 😂

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Dan Chaltiel @danchaltiel.bsky.social · 11d

Interesting, but I'm not sure I understood correctly. We should not use 42 because students and AIs will think it is the "only right value"? Because in actual problems, you either replicate or cross-validate your simulations, so I'm not sure how the seed can lead to incorrect results.

Reposted by Dan Chaltiel

Francisco Rodriguez-Sanchez @frodsan.bsky.social · 14d

Still fascinated with #webR and its potential for teaching stats

Here students can play (even from their phones) and find out themselves how the p-value depends on sample size

pakillo.github.io/LM-GLM-GLMM-... #rstats

A screenshot of a statistics tutorial made with R, quarto and webR

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Dan Chaltiel @danchaltiel.bsky.social · 14d

#rstats

Dan Chaltiel @danchaltiel.bsky.social · 14d

Salut tout le monde !
On cherche un·e stagiaire M2/ingé pour un projet R.
Pas besoin de formation pointue en stats.
À Gustave Roussy, près de Paris (métro 14). Le/la stagiaire apprendra plein de choses !
oncostat.github.io/internships_...
N'hésitez pas à partager ou à me demander des précisions 😊

oncostat.github.io

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Dan Chaltiel @danchaltiel.bsky.social · 23d

I was also very annoyed by this. Thank you so much for this feature! 🤩🤩

Dan Chaltiel @danchaltiel.bsky.social · 23d

For now, it is the lack of floating windows for plots and HTML views that prevents me from migrating :
github.com/posit-dev/po...
Also, they recently integrated LLM features by default, which makes me very nervous about confidentiality 😱

Reposted by Dan Chaltiel

Nicola Rennie @nrennie.bsky.social · 26d

Wondering if you can outsource your data viz work to ChatGPT? 📊

I tested out a few different generative AI tools, giving them prompts to visualise two different data sets. If you're interested in the results, you can read them here: nrennie.rbind.io/blog/gen-ai-...

#RStats #Python #DataViz #GenAI

Generative AI for Data Visualisation – Nicola Rennie

Can generative AI create good data visualisations? This blog post compares the performance of ChatGPT, Claude, Copilot, and Gemini when presented with a generic request to visualise a dataset.

nrennie.rbind.io

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Reposted by Dan Chaltiel

econmaett @econmaett.github.io · 27d

I didn't know you could write nested loops in R this way
#rstats
www.quantstart.com/articles/Aut...

for (p in 1:4) for (d in 0:1) for (q in 1:4)

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Dan Chaltiel @danchaltiel.bsky.social · 29d

Is there a video of this presentation? I'd love to hear that 🤩🤩

Dan Chaltiel @danchaltiel.bsky.social · Oct 2

Nice !
For more complex strings, you can use www.rdocumentation.org/packages/gto...
But you probably saved me a dependency to gtools, thanks 😁

Reposted by Dan Chaltiel

Daniel Gutierrez @ddgutierrez.bsky.social · Oct 1

When I see a report filled with p-values and no effect sizes, I worry. When I see model metrics and no baseline comparison, I worry. Statistics is more than math. It’s the discipline of contextual honesty.

#DataScience #MachineLearning #AI #RStats

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Dan Chaltiel @danchaltiel.bsky.social · Oct 2

You could also use: slice_tail(n=1)

Dan Chaltiel @danchaltiel.bsky.social · Sep 30

That is so nice of you, thanks ! 😄

Dan Chaltiel @danchaltiel.bsky.social · Sep 30

thanks, I'll give it a try!

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Dan Chaltiel @danchaltiel.bsky.social · Sep 30

Nice!
What feature do you love especially, compared to flextable or gt?
I was considering adding a tinytable output in my {crosstable} package, but I'm curious about what it brings.

Dan Chaltiel @danchaltiel.bsky.social · Sep 30

This has been asked github.com/rstudio/rstu..., but unfortunately the issue was closed for inactivity before being addressed.
It is significantly easier to switch on Positron than RStudio, though.
Rig is great, but a bit overkill for small projects.

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Reposted by Dan Chaltiel

Francois Keck @francoiskeck.bsky.social · Sep 30

If doughnuts are coming back into fashion, let me bring this one back. #rstats #ShowYourStripes #ShowYourTorus

Climate stripes projected on a 3d torus.

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Reposted by Dan Chaltiel

Emily Riederer @emilyriederer.bsky.social · Sep 14

Really insightful post from Julie Tibshirani (spotted in LinkedIn, can't find on Bsky) reflecting on #rstats 's unique governance structure and what can be learned for other languages

jtibs.substack.com/p/if-all-the...

If all the world were a monorepo

The R ecosystem and the case for extreme empathy in software maintenance

jtibs.substack.com

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Reposted by Dan Chaltiel

James Balamuta @coatless.bsky.social · Sep 7

By request: Same #rshiny app → native #electron desktop app workflow now on #Windows11

shinyelectron::export() → #rshinylive → installer → app.exe

[Worth the Parallels license to record this from my Mac]

Still no #rstats dependencies for end users. Living the cross-platform life (virtually).

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Dan Chaltiel @danchaltiel.bsky.social · Sep 8

Looks amazing! Is it planned to support Windows 10? I'd love to try it out!

Reposted by Dan Chaltiel

Danielle Navarro @djnavarro.net · Sep 8

At the risk of stretching the imagination beyond the limits of human endurance, the reader is asked to pretend that the author is interested in splines #rstats

Splines, B-splines, P-splines, and a disapproving kitten – Notes from a data witch

No, I do not care about splines. But I am trying to learn about GAMLSS regression, and yes, it is to this dark place that this topic has taken me

blog.djnavarro.net

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Dan Chaltiel @danchaltiel.bsky.social · Aug 1

Because running tests is an extra action that would take me a few seconds each time.

Reposted by Dan Chaltiel

econmaett @econmaett.github.io · Jul 30

From r/virginvschad 👀
#stats

Virgin non-parametric vs Chad linear regression
Source: https://www.reddit.com/r/virginvschad/comments/c4xdxg/virgin_nonparametric_vs_chad_linear_regression/?utm_source=share&utm_medium=web3x&utm_name=web3xcss&utm_term=1&utm_content=share_button

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Dan Chaltiel @danchaltiel.bsky.social · Jul 31

💡 Tips wanted! #RStats
You're working on a package 📦 and improving a function. What's your development workflow?
I usually put a minimal example in a helper file, so every time I run `devtools::load_all()` it loads my changes and shows their effect.
But I wonder if there's a cleaner way to do it...

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