Send Me Your Questions and Ideas

August 25, 2025 | pacha.dev/blog

I’m always looking for ways to make this blog more useful for the R, Shiny, and C++ community. If you have a topic you’d like to see covered—whether it’s how to read Stata files in R, tidying up a public dataset, or anything else—I’d ... [Read more...]

How many parameters does GPT-5 have?

August 25, 2025 | Chris Bowdon

One of the many arguments I’ve been having with o3 recently was on how many parameters GPT models have. It’s quite often that I want to benchmark open source models against a comparable proprietary model, but Unfortunately since OpenAI (and Anth...
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The birthday problem

August 22, 2025 | Michael

Birthday bundle – CC-BY-NC-SA by Rosie Rogers The birthday problem is a classic counter-intuitive mathematical result concerning the probability that two people, in a group, have the same birthday. The formal solution is too complex for me ...
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Python needs its CRAN

August 21, 2025 | Econometrics and Free Software

How is it that in the year 2025 of our Lord installing a Python package is still such a gamble? This post comes from someone that rarely uses Python, but consider the following: the rare times I need to use it, I’m often confronted to dep...
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