R-bloggers

Goal The goal for this exercise is to familiarize yourself with two very important machine learning methods, the decision tree and random forest. After this exercise, you should be able to train these models and extract important information to ...

Goal You will learn how to estimate the model performance with mlr3 using resampling techniques such as 5-fold cross-validation. Additionally, you will compare k-NN model against a logistic regression model. German Credit Data We work with the...

Tried out plumber and a bit of JavaScript to build a simple local API for logging migraine events 🧠💻. Just a quick tap on my phone now records the time to a CSV—pretty handy! 📱✅ Motivation After our previous blog on barometric pressure monitoring, my friend Alec Wong said ‘Won’t ...

Benchmarking the Theta forecasting method with GLMs, GAMs, GLMBOOST, and attention on M1, M3 and M4 competition datasets (28000 series)

Some windows. Olympus XA, Portra 800. Photo by Nicholas Tierney The new R version 4.5.0 is out, and you should get it! I’ve read through the NEWS file, which details every change - there are many! I would recommend having a skim. If you’...

In this blog, we explored how to set up cross-validation in R using the caret package, a powerful tool for evaluating machine learning models. Here’s a quick recap of what we covered: Introduction to Cross-Validation: Cross-validation is a resampling technique that helps assess model performance and prevent overfitting by ...

Data preprocessing is a crucial step in any machine learning workflow. It ensures that your data is clean, consistent, and ready for modeling. In this blog post, we’ll walk through the process of splitting and preprocessing data in R, using the rsample package for data splitting and saving the ...

Data preprocessing is a critical step in any machine learning workflow. It ensures that your data is clean, consistent, and ready for modeling. In R, the recipes package provides a powerful and flexible framework for defining and applying preprocessing steps. In this blog post, we’ll explore how to use ...

Exploring the HistData package Over on BlueSky, I have been working through a few challenges. For the months of February and March, I participated in the DuBois Challenge, where you take a week to recreate some of the powerful visualizations that came out of the Paris Exposition from W.E....

Introduction

In my previous post A First Look at TimeGPT using nixtlar, I used the auto.arima() function from the forecast package to fit an ARIMA model to a time series of electricity usage data in order to compare and ARIMA forecast with the TimeGPT foreca...

R 4.5.0 (“How About a Twenty-Six”) was released on 11th April, 2025. Here we summarise some of the interesting changes that have been introduced. In previous blog posts we have discussed the new features introduced in R 4.4.0 and earlier versions...

R Dev Days are events for novice and experienced contributors to collaborate on contributions to the code, documentation and translations in base R. There are several planned in the coming months with application/registration deadlines in the ne...