D3po 1.0.0 is here! "If this post is useful to you I kindly ask a minimal donation on Buy Me a Coffee. It shall be used to continue my Open Source efforts. You can send me questions for the blog using this form and subscribe to receive an email when there is a new ... Continue reading: D3po 1..."

Inequality and homicide, within-country and between country by @ellis2013nz "So this is a blog post about making and finding an error in modelling strategy, in an apparently simple situation. I saw this post (toot?) on Mastodon from Daniel Lakens mentioning in passing that “On the other hand,..."

Tutorial for Developing an Advanced Stock Dashboard for the S&P 500 for the 2025 Posit Table Contest "This tutorial breaks down the development of an R Shiny application titled S&P 500 Monitoring Dashboard for the 2025 Posit Table Dashboard. This app effectively combines interactive financial..."

What’s new for Python in 2025? "Python 3.14 was released on 7th October 2025. Here we summarise some of the more interesting changes and some trends in Python development and data-science over the past year. We will highlight the following: the colourful Python command-line interface; project..."

Building and Customising Statistical Models with Stan and R: An Introduction to Bayesian Inference workshop "Join our workshop on Building and Customising Statistical Models with Stan and R: An Introduction to Bayesian Inference, which is a part of our workshops for Ukraine series!  Here’s so..."

Two New Preprints on Multilevel Hidden Markov Models "Hidden Markov models (HMMs) are powerful models to capture the complex behaviours of psychological processes that switch between different latent states. Examples include manic and depressive states in bipolar disorder, recovery and relaps..."

A Personal Message from an Open Source Contributor "Dear fellow developers and data scientists: If everyone reading this gave just the price of a coffee, I could focus fully on open source work for our community. But not everyone can or will contribute, and that’s okay. For years, I’ve built ..."

Futures: Interrupts, Crashes, and Retries "The future package celebrates ten years on CRAN as of June 19, 2025. I got a bit stalled over the holidays and while attending the fantastic useR! 2025 conference, but, as promised, here is the fourth in a series of blog posts highlighting recent... ..."

clitable: a new R package to easily print pretty tables in the terminal "I am pleased to announce that clitable, my new R package for printing tables in the terminal, just made its way to the CRAN!! It lets you print pretty colorful tables directly in the R console or terminal. I am also quit..."

Linear algebra using Armadillo via armadillo4r workshop "Join our workshop on Linear algebra using Armadillo via armadillo4r , which is a part of our workshops for Ukraine series!  Here’s some more info:  Title: Linear algebra using Armadillo via armadillo4r  Date: Thursday, November 6th, 18:..."

Integrating Python Forecasting with R’s Tidyverse "In this article, we executed a successful integration of a non-standard Python forecasting model into the R Tidyverse/Tidymodels framework, primarily leveraging the reticulate package. 1. The Objective (The Challenge) The goal was to utilize ..."

New, work-in-progress book on spatial data visualization in R "We want to introduce a new, work-in-progress book on spatial data visualization in R using the tmap package. The current version of the book, titled Spatial Data Visualization with tmap: A Practical Guide to Thematic Mapping in R,..."

Upcoming Free Webinar: Understanding Posit – Ecosystem and Use Cases "Date: Thursday, 23rd October 2025 Time: 13:05 (UK Time) Duration: 55 minutes Cost: Absolutely free! Reserve your spot now: https://jumpingrivers.typeform.com/to/UmdyNbAs Ready to get more out of your Posit tools and underst..."

Python package development for R developers "Developing a Python package when coming from R: experience feedback I’ve learned a lot by developing and contributing to various R packages over the years. Without having (yet!) a personal package on CRAN, I use package development on a daily b... ..."

Beyond Fraud: How IHME Distorts Academic Metrics "Recently, a post on LinkedIn highlighted a Google Scholar profile of an apparently just starting PhD researcher who suddenly started accumulating unbelievable counts of citations to his questionably numerous papers. Usually, such profiles are ..."

More data (> 150 files) on T. Moudiki’s situation: a riddle/puzzle (including R, Python, bash interfaces to the game — but everyone can play) "This post contains a riddle/puzzle related to T. Moudiki's situation, including files and code snippets in R, Python, and bash. The ZIP file with a lo..."

GAMs for Customer Lifetime Value (CLV) prediction "I typically work in quantitative ecology and molecular epidemiology, where we use statistical models to predict species distributions or disease transmission patterns. Recently though, I had an interesting conversation with a data science PhD..."

Nested Forecasting with Spark: Blockchain ETF Trends "Bitcoin hit an all-time high of $125,664 on October 5. This increase was fueled by a historic net inflow of $3.24 billion into spot Bitcoin ETFs and rising public demand. In this article, we will predict the trend of two blockchain ETFs us..."

Add a test coverage badge to your R packages using GitHub Actions "If this post is useful to you I kindly ask a minimal donation on Buy Me a Coffee. It shall be used to continue my Open Source efforts. You can send me questions for the blog using this form and subscribe to receive an email wh..."

GPU Support in Bioconductor "Introduction GPU acceleration enables faster and more scalable analysis workflows, especially for tasks like deep learning, image processing, and large-scale genomics, making Bioconductor more powerful for researchers working with complex data.... Continue readi..."

R port of llama2.c "R port of llama2.c (based on tiny stories) Continue reading: R port of llama2.c"

Halloween in the Round "Last year I wrote about cleaning some data from the NHTSA FARS database, the system that tracks information about road accidents in the United States. I did that again this year for my Modern Plain Text Computing class. I won’t repeat the cleanin... Continue reading: H..."

Deploy Multiple Shiny Apps from One R Package "Code organization and deployment strategy for multiple Shiny apps sharing common logic within a single R package. Structuring your project in a monorepo format. Continue reading: Deploy Multiple Shiny Apps from One R Package"

A new simstudy function to make simulating replications easier "Four years ago, I described a simple framework for organizing simulations to conduct power analyses or explore the operating characteristics of modeling approaches. In that framework, I introduced a small function scenario_list t..."

Text Analytics in R with quanteda (Part 1) "Required Packages library(quanteda) library(quanteda.textstats) library(quanteda.textplots) library(readr) library(dplyr) library(ggplot2) library(stringr) library(DT) library(tidytext) Understanding Text Analytics Fundamentals Text analytic... Co..."

Resource for using Large Language Model tools in R "Resource for using Large Language Model tools in R If you’re interested in using Large Language Models (LLMs) with R, you should check out Luis D. Verde Arregoitia’s new online resource: Large Language Model tools for R. Its available in Eng..."

New online book AI Assistants for Scientific Coding "New online book AI Assistants for Scientific Coding I’ve released a new online book, AI Assistants for Scientific Coding. It’s a practical guide to using language models to support scientific computing and analysis. The book focuses on help..."

Mapping locations related to the Amelia Earhart disappearance by @ellis2013nz "The 1937 disappearance of Amelia Earhart and Fred Noonan was briefly in the news in the last week or so. A campaign, apparently based in the Northern Marianas, to release any papers held by the US government found ..."

Simulating Monty Hall’s Problem "I find that when teaching statistics (and probability) it is often helpful to simulate data first in order to get an understanding of the problem. The Monty Hall problem recently came up in a class so I implemented a function to play the game. Th... Continue r..."

Plotting Distributions in R "When working with distributions in R, each distribution has four functions, namely: dXXX - density function. rXXX - generate random number from this distribution. pXXX - returns the area to the left of the given value. qXXX - returns the quantil... Continue read..."

rOpenSci Code of Conduct Committee Templates "At rOpenSci, our Code of Conduct (CoC) committee works to support a healthy, welcoming, and inclusive community. A big part of this work is making sure that the processes we follow are transparent, consistent, and fair. Over the years, we’ve devel..."

Uncertainty Analysis: Gold vs. Bitcoin "Deutsche Bank Research Institute stated in its published report that Bitcoin has undergone a process similar to what gold experienced over the past 100 years. According to the report, Bitcoin’s increasing adoption and reduced volatility may transform it..."

Introducing cpp4r: A C++ Interface for R’s C Interface "If this post is useful to you I kindly ask a minimal donation on Buy Me a Coffee. It shall be used to continue my Open Source efforts. The full explanation is here: A Personal Message from an Open Source Contributor. You can send me ques..."

August 2025 Top 40 New CRAN Packages "Causal Inference gadjid v0.1.0: Enables efficient Rust implementations of graph adjustment identification distances available in R. These distances (based on ancestor, optimal, and parent adjustment) count how often the respective adjustment ... Continu..."

Spurious Correlations in R – Correlation is not Causation "If this post is useful to you I kindly ask a minimal donation on Buy Me a Coffee. It shall be used to continue my Open Source efforts. The full explanation is here: A Personal Message from an Open Source Contributor. You can send me q..."

Learning And Exploring The Workflow of RNA-Seq Analysis – A Note To Myself "Learned RNA-seq workflow using C. difficile data from a published study 🧬. Processed raw reads through fastp → kallisto → DESeq2 pipeline. Results matched the original paper’s findings, with clear differential express..."

Creating a simple R package with C++ code to sum “a + b” using different data types "If this post is useful to you I kindly ask a minimal donation on Buy Me a Coffee. It shall be used to continue my Open Source efforts. The full explanation is here: A Personal Message from an Open Source Cont..."

Global Modeling with XGBoost: Gold vs. Silver "China aims to increase its influence in the global bullion market by directing friendly countries to store their gold reserves within its borders. This move is part of Beijing’s efforts to reduce its reliance on the dollar and promote the global ..."

Bayesian Optimization for Sequential Decisions with Multi-Arm Bandits "Join our workshop titled Bayesian Optimization for Sequential Decisions with Multi-Arm Bandits, which is a part of our workshops for Ukraine series!  Here’s some more info:  Title: Bayesian Optimization for Sequential Deci..."

Ten year anniversary of Free Range Statistics by @ellis2013nz "Ten years of blog posts A few months ago—26 July 2025 to be precise—was the tenth anniversary of my first blog post. Over that time it turns out I’ve written about 225 blog posts, and an astonishing (to me) 350,000 words. That’s a..."

Creating a simple R package with C++ code to sum “a + b” "If this post is useful to you I kindly ask a minimal donation on Buy Me a Coffee. It shall be used to continue my Open Source efforts. The full explanation is here: A Personal Message from an Open Source Contributor. You can send me qu..."

A Gentle Introduction to Open Science "Read it in: Français. Sunny and Steffi showing off their R hex stickers! This summer I had a wonderful time attending the Society for Canadian Ornithologists meeting in Saskatoon, Canada. It was super exciting to run into Sunny Tseng, rOpenSci Cham... Co..."

A Personal Message from an Open Source Contributor "You can send me questions for the blog using this form and subscribe to receive an email when there is a new post. Dear fellow developers and data scientists, If everyone reading this gave just the price of a coffee, I could focus fully on o..."

A Note on the Dirichlet Distribution "In 1839, the gifted mathematician Peter Gustav Lejeune Dirichlet was attached to the Philosophy department at the University of Berlin working for less than full pay even though he had become a member of the Prussian Academy of Sciences in 1832.... Cont..."

T test in R "In this post, you will learn what a T Test is and how to perform it in R. First, you’ll see a simple function that lets you perform the test with just one line of code. Then, we will explore the intuition behind the test, building it step by ... Continue reading: T test in R"

Key improvements in shapviz and kernelshap "Recent updates to the two SHAP packages Continue reading: Key improvements in shapviz and kernelshap"

My first GitHub Actions extension: A tool to apply Clang format to C++ code "If this post is useful to you I kindly ask a minimal donation on Buy Me a Coffee. It shall be used to continue my Open Source efforts. The full explanation is here: A Personal Message from an Open Source Contributor...."

Augmented Dynamic Adaptive Model (ADAM) for Daily Seasonal Data "I have modeled the BIST 100 index to build predictive intervals. Because the data has daily seasonality, I preferred the modeltime::adam_reg function. I did not use the timetk::step_timeseries_signature function because the mode..."

Generative AI and R workshops in Hobart Australia "Centre for Marine Socioecology R and AI workshops In person Hobart Australia 11th and 12th November 2025 Course page and further details Registration The R program is a powerful tool for data analysis, but has a steep learning curve. Join us ..."

Bayes on the Beach 2026 (University of Wollongong, NSW, 9-11 Feb.) "Continue reading: Bayes on the Beach 2026 (University of Wollongong, NSW, 9-11 Feb.)"