R-bloggers - Part 30

The Dynamics of the “Gentle Way”: Exploring Judo Attack Combinations as Networks in R

May 27, 2025 | Vinicius Bastazini

As the Judo World Championship draws near this June in Budapest, it feels like the perfect time to bring together my passion for Judo (and Brazilian Jiu-Jitsu) with my gusto for complex network analyses — a fusion that’s been a long time in the making! While my posts typically focus ...

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How long must I wait until something happens: A Comprehensive Guide to Survival Analysis via an API

May 26, 2025 | T. Moudiki

How to make API calls to techtonique.net for machine learning survival analysis tasks using curl, curlconverter.com, Python requests

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Porting my favorite RStudio color theme to Positron

May 26, 2025 | %>% dreams

My favorite RStudio theme My favorite color theme in RStudio is Tomorrow Night Bright. It’s an excellent, dark, high-contrast (‘bright’) theme that I’ve used consistently since I first started using RStudio. Originally written by Chris Kempson a...

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Shiny Assisted Solar Ages

May 26, 2025 | Author: Kurtis Smith

Project Introduction Inspired by my son’s love for everything solar system and my wanting to play with Shiny Assistant. I’ve built an app that takes your date of birth and displays your age for each of the major planets in our solar system. H... [Read more...]

Forecasting MSCI Europe Index Post-Trump Tariff Announcement

May 26, 2025 | Selcuk Disci

European stocks rise sharply after Trump postpones the 50% tariff on the EU. According to the ML model, this may boost prices to the $18,000 band for the MSCI Europe Index. [Read more...]

Self-intersecting Quadrilateral

May 25, 2025 | Jerry Tuttle

A quadrilateral is a polygon having four sides, four angles, and four vertices. A polygon means that the figure is a closed shape, meaning the last line segment connects back to the first one, effectively enclosing an...

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R for Windows with OpenBLAS (Make Your R Code Run 30x Faster)

May 25, 2025 | pacha.dev/blog

What if I told you that you could make your R computations run up to 30 times faster without modifying any of your code? I’ve created a custom R installer that comes with OpenBLAS pre-integrated. It’s the same R you know and love, but with a high... [Read more...]

Ask and you shall receive

May 25, 2025 | Vince Carey

In the beginning … … there was a 9-track tape shipped from Bell Labs. S would be installed for “unix”. Extensions could be programmed in Fortran. I started using this around 1985. S REPORT presaged Sweave and knitr: troff, eqn, pic could be int...

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Harnessing the Power of techtonique.net: A Comprehensive Guide to Machine Learning Classification via an API

May 25, 2025 | T. Moudiki

How to make API calls to techtonique.net for machine learning classification tasks using curl, Python requests, and R httr

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rOpenSci News Digest, May 2025

May 25, 2025 | rOpenSci - open tools for open science

Dear rOpenSci friends, it’s time for our monthly news roundup! You can read this post on our blog. Now let’s dive into the activity at and around rOpenSci! rOpenSci HQ Help us maintain {pkgcheck}! You might know of our {pkgcheck} syste... [Read more...]

Little useless-useful R functions – Absurd bias DAG with useless mental shortcuts

May 25, 2025 | tomaztsql

Exploring graphs is always a fun. Attaching the edges and nodes with real examples of psychological effects and accompany them with useless mental shortcuts is beyond fun. This is why we will call it a “cognitive bias” explorer using DAG.…Read more ›

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Taylor Series Approximation To Newton Raphson Algorithm – A note for myself of the proof

May 24, 2025 | r on Everyday Is A School Day

We learnt to derive the Newton-Raphson algorithm from Taylor series approximation and implements it for logistic regression in R. We’ll show how the second-order Taylor expansion leads to the Newton-Raphson update formula, then compare individua...

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Repost: Writing a book with Quarto

May 23, 2025 | Stephen Turner

Reposted from the original at https://blog.stephenturner.us/p/quarto-books....In the spirit of learning in public, I wanted an excuse to dive into Quarto to learn more about publishing formats beyond simple PDF and HTML documents.If you’re not fam...

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Xgboost

May 22, 2025 | Giuseppe Casalicchio

JavaScript is required to unlock solutions. Please enable JavaScript and reload the page, or download the source files from GitHub and run the code locally. Goal Our goal for this exercise sheet is to understand how to apply and work with XGBoost. The XGBoost algorithm has a large range of ... [Read more...]

Custom PowerPoints Using {officer}

May 22, 2025 | The Jumping Rivers Blog

From a purely design perspective, Quarto’s standard PowerPoint output falls short. It is limited to seven layout options, with the most complex being “Two Content.” The {officer} R package offers a powerful alternative for those seeking full cont...

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Impact of Encoding

May 21, 2025 | Giuseppe Casalicchio

JavaScript is required to unlock solutions. Please enable JavaScript and reload the page, or download the source files from GitHub and run the code locally. Goal Apply what you have learned about using pipelines for efficient pre-processing and model training on a regression problem. House Prices in King county In ... [Read more...]

A step-by-step chart makeover

May 21, 2025 | R on Nicola Rennie

Making a bad chart As part of the 30 Day Chart Challenge in April 2025, I made a (deliberately) bad chart, which didn’t follow any data visualisation best practices: There are many things wrong with this chart, to list just some of them:... [Read more...]

Security blind spots in Shiny: why your app is more vulnerable than you think

May 21, 2025 | Arthur Bréant

You can read the original post in its original format on Rtask website by ThinkR here: Security blind spots in Shiny: why your app is more vulnerable than you think Buckle up, we’re talking about security… While developing the Signature.py application, ThinkR recently faced a security issue – in ... [Read more...]

Bioconductor in Africa: Highlights from Our First In-Person Course

May 20, 2025 | Maria Doyle

In March 2025, Bioconductor marked an exciting milestone—our first in-person course on the African continent. Hosted by the International Institute of Tropical Agriculture (IITA) in Nairobi, this five-day workshop brought together 32 researchers...

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Encoding and Scaling

May 20, 2025 | Giuseppe Casalicchio

JavaScript is required to unlock solutions. Please enable JavaScript and reload the page, or download the source files from GitHub and run the code locally. Goal Learn how to do preprocessing steps directly on a mlr3 Task object and how to combine a preprocessing with a learner to create a ... [Read more...]

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