Rotation with Modulo

May 2, 2025 | Jonathan Carroll

How well do you know your fundamental operators in different languages? ‘Easy’ examples help to fortify that knowledge, and comparing across languages makes for some neat implementation detail discoveries. I saw this toot from @gregeganSF on Mastodon ... [Read more...]

Model Diagnostics: Statistics vs Machine Learning

April 30, 2025 | Christian Lorentzen

In this post, we show how different use cases require different model diagnostics. In short, we compare (statistical) inference and prediction. As an example, we use a simple linear model for the Munich rent index dataset, which was kindly provided by the authors of Regression – Models, Methods and Applications 2nd ...
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30 Day Chart Challenge 2025

April 30, 2025 | R on Nicola Rennie

The 30 Day Chart Challenge is a data visualisation challenge organised by Cédric Scherer and Dominic Royé. Participants make one chart each day of the challenge, inspired by the daily prompt. The prompts are also split across 5 different categories, wh... [Read more...]

March 2025 Top 40 New CRAN Packages

April 29, 2025 | Joseph Rickert

In March, one hundred eighty-two new packages made it to CRAN. Here are my Top 40 picks in sixteen categories: Agriculture, Archaeology, Biology, Climate Modeling, Computational Methods, Data, Ecology, Epidemiology, Genomics, Machine Learning, M...
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flags: Fun with Flags

April 29, 2025 | R/exams

Single-choice knowledge quiz question in which the correct flag for a country has to be selected from a list of flags. Name: flags Type: schoice Related: capitals, countrycodes Preview: Which is the fl...
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surveydown: An Open-Source, Markdown-Based Platform for Interactive and Reproducible Surveys workshop

April 29, 2025 | Dariia Mykhailyshyna

Join our workshop on surveydown: An Open-Source, Markdown-Based Platform for Interactive and Reproducible Surveys, which is a part of our workshops for Ukraine series!  Here’s some more info:  Title:surveydown: An Open-Source, Markdown-Based Platform for Interactive and Reproducible Surveys Date: Thursday, May 29th, 18:00 – 20:00 CET (Rome, Berlin, Paris timezone) Speaker: ... [Read more...]

sumdiff: Sum Minus Difference

April 28, 2025 | R/exams

Exercise template for a very basic arithmetic task, namely computing the sum of two random numbers minus their difference. Name: sumdiff Type: num Related: deriv Preview: By how much is the sum of the ...
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Announcing… schematic

April 27, 2025 | Will Hipson

I’m thrilled to announce the release of schematic, an R package that helps you (the developer) communicate data validation problems to non-technical users. With schematic, you can leverage tidyselect selectors and other conveniences to compare i... [Read more...]

How the DSGE sausage is made

April 27, 2025 | datascienceconfidential - r

Introduction Dynamic Stochastic General Equilibrium (DSGE) models are a class of models which attempt to model the entire economy of a nation. The purpose of this post is to hand-code a DSGE model in R, fit it to data, and check that the results agree...
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proximal sampler

April 27, 2025 | xi'an

At the Columbia workshop last week, Andre Wibisono presented work related with a recent arXival on the exponentially fast convergence of both unadjusted Langevin and  proximal sampler algorithms under strong [definitely strong] log-concavity assumptions. The idea behind the proximal sampler is to target the demarginalised density by introducing an auxiliary ...
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