A Note on the Dirichlet Distribution

September 21, 2025 | Joseph Rickert

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....
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T test in R

September 20, 2025 | Ponne, Bruno

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 ...
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Augmented Dynamic Adaptive Model (ADAM) for Daily Seasonal Data

September 18, 2025 | Selcuk Disci

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 model cannot process too many exterior regressors, and the algorithm captures the trend and seasonality ...
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Phoenician colonization

September 17, 2025 | Michael

Figura de Astarté – Museo Arqueológico de Sevilla, Public domain, via Wikimedia Commons I was reading Phoenician colonization from its origin to the 7th century BC (Manzano-Agugliaro et al. 2025) and thought it was an interesting dataset, but alas: it is split in four tables, behind a javascript redirect (wtf Taylor & ...
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