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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Nonparametric serial interval estimation

August 17, 2025 | R on Stats and R

Motivation Epidemiological delays inform about the time between two well-defined events related to a disease. The serial interval (SI) of an infectious disease is defined as the time between symptom onset in a primary case (infector) and symptom onset in a secondary case (infectee). It is a widely used epidemiological ...
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