Toots for jrosell@mastodon.social account

Written by Jordi Rosell on 2025-01-28 at 15:48

Et trobarem a faltar.

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Written by Jordi Rosell on 2024-12-31 at 23:25

Bon any 2025 a tothom!

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Written by Jordi Rosell on 2024-12-31 at 17:01

Bon any 2025 Vietnam!

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Written by Jordi Rosell on 2024-12-19 at 16:36

At the moment, this is how I like to check and load #rstats packages in my scripts, including non-CRAN packages. It requires {rlang} and {pak} packages.

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Written by Jordi Rosell on 2024-12-13 at 10:04

Here the code: https://gist.github.com/jrosell/667fee58c8ff47a99591fa6122e04ed3

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Written by Jordi Rosell on 2024-12-13 at 10:02

Thanks to @koaning for pointing out this visualization in Stack Overflow https://stackoverflow.com/a/49535509/481463 in this video https://www.youtube.com/watch?v=3M2Gmuh5mtI

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Written by Jordi Rosell on 2024-12-13 at 09:59

I used F1 score in the past in many machine learning projects in #rstats and #python (It's useful for imbalanced classification problems), but I hadn't visualized its relationship with precision and recall UNTIL TODAY :)

Here a {rayshader} #dataviz comparing F1 score harmonic mean (As you see, it penalizes the score if one metric is bad) with the mean (It simply averages metrics).

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Written by Jordi Rosell on 2024-12-13 at 09:21

Playing arround with the new {frak} package from @coolbutuseless #rstats

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Written by Jordi Rosell on 2024-12-05 at 12:53

I've completed "Print Queue" - Day 5 - Advent of Code 2024 #AdventOfCode https://jrosell.github.io/AdventOfCode/2024/05.html

First loop of the year in the second part #rstats

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Written by Jordi Rosell on 2024-12-04 at 19:11

I just completed "Ceres Search" - Day 4 - Advent of Code 2024 #AdventOfCode #rstats https://jrosell.github.io/AdventOfCode/2024/04.html

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Written by Jordi Rosell on 2024-12-03 at 15:25

People saying that R being licensed as GPL is bad, should know that Linux kernel is also GPL.

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Written by Jordi Rosell on 2024-11-25 at 20:56

Quin és el millor model Text-to-Speach en català? Aquí pots comparar-ne alguns de projecte aina, facebook, microsoft, mozilla...

https://github.com/jrosell/playground4tts

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Written by Jordi Rosell on 2024-11-14 at 09:50

{ggplot2} and {magick} magic in #rstats :)

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Written by Jordi Rosell on 2024-11-13 at 13:29

I love rlang::chr() over c() in #rstats because it accepts missing arguments with no default and it does type checking.

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Written by Jordi Rosell on 2024-10-30 at 10:09

How to implement function composition pipelines in Python like we do in R. #rstats https://gist.github.com/jrosell/2a5ec18785dbdcfff73a471856f4bca3

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Written by Jordi Rosell on 2024-10-24 at 11:47

I did some benchmarking and rlang::hash seems quite fast to me. Faster than digest::digest and other #rstats packages.

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Written by Jordi Rosell on 2024-10-22 at 16:01

Trying codegrip keybinding in positron for some #rstats code

[{
  "key": "Ctrl+tab",
  "command": "workbench.action.executeCode.console",
  "description": "Reshape expressions longer or wider",
  "when": "editorTextFocus",
  "args": "codegrip::addin_reshape()"
}]

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Written by Jordi Rosell on 2024-10-16 at 08:53

Is this a bug or an enhancement for positron IDE #rstats?

https://github.com/posit-dev/positron/issues/5040

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Written by Jordi Rosell on 2024-10-10 at 18:03

I still didn't read this https://people.idsia.ch//~marco/papers/2017jmlr-tests.pdf

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Written by Jordi Rosell on 2024-10-10 at 17:56

Please #rstats people, can you give me some literature about comparing two or more than two models & accounting for the within-resample correlation (same folds) using a Bayesian hierarchical model?

Note: I've already read this https://www.tmwr.org/compare#tidyposterior

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