Harnessing the Power of techtonique.net: A Comprehensive Guide to Machine Learning Classification via an API
How to make API calls to techtonique.net for machine learning classification tasks using curl, Python requests, and R httr
R bloggers
rOpenSci News Digest, May 2025
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
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 ›
Taylor Series Approximation To Newton Raphson Algorithm – A note for myself of the proof
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...
Repost: Writing a book with Quarto
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...
Xgboost
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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}
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...
A step-by-step chart makeover
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...]
Impact of Encoding
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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...]
Security blind spots in Shiny: why your app is more vulnerable than you think
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...]
Encoding and Scaling
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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...]
Forwards To Offer R Package Development Workshops Online
The Forwards teaching team is hosting two workshop series beginning next month to teach participants how to build their own R packages. No prior package building experience is required. The course consists of five 90-minute sessions held every ... [Read more...]
Shiny in Production 2025: Workshops
Shiny in Production is heading back to The Catalyst in Newcastle upon Tyne
this October! We’ve got a great mix of workshops and a full day of talks, with speakers
being announced soon. You’ll find all the workshop details below,
and you can sign up now on the ...
Building fully reproducible data science environments for R and Python with ease using Nix, rix, and rixpress workshop
Join our workshop on Building fully reproducible data science environments for R and Python with ease using Nix, rix, and rixpress, which is a part of our workshops for Ukraine series! Here’s some more info: Title: Building fully reproducible data science environments for R and Python with ease using ... [Read more...]
Multidimensional poverty evaluation at national, sub-national and factor levels
Introduction
The Dyn4cast function was launched purposely to facilitate fast and easy forecast of COVID-19 cases in Nigeria. It was converted to a package and the development version of the package was launched on the 17th of February, 2021 with a si...
Planning for a 3-arm cluster randomized trial with a nested intervention and a time-to-event outcome
A researcher recently approached me for advice on a cluster-randomized trial he is developing. He is interested in testing the effectiveness of two interventions and wondered whether a 2×2 factorial design might be the best approach.
As we discussed...
logrx 0.4.0: logs for your R programs
Introducing logrx 0.4.0: Enhanced Logging for Your R Programs
The A Logging Utility Focus on Clinical Trial Programming Workflows • logrx A Logging Utility Focus on Clinical Trial Programming Workflows • logrx {logrx} R package facilitate... [Read more...]
Keep your R code clean and consistent with Air
Consistent code formatting is a crucial aspect of collaborative development that often gets overlooked. Well-formatted code provides several significant benefits:
Readability: Uniform formatting makes code easier to read and understand for ever... [Read more...]
Cost-Effectiveness Analysis
In a previous post, we presented an rjags version of a Bayesian model from Chapter 2 of the textbook: Evidence Synthesis for Decision Making in Healthcare by Welton et al. (2012). In this post, we continue our project to present rjags versi...
15 New Books added to Big Book of R
I’m very excited to announce that 6 English-language books and 9 Portuguese books have been added to the collection of over 400 free, open-source R programming books. Many thanks to Bruno Mioto for the submission of the Portuguese books. As a reminder, there is also a Spanish-language chapter with 15 …
The post 15 New ... [Read more...]
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