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Another update on non-transitive dice

http://notstatschat.netlify.com/2024/04/29/another-update-on-non-transitive-dice-and-the-wilcoxon-test/

Published: April 29, 2024 00:00

I’ve mentioned before that mathematician Tim Gowers had run a ‘polymath’ (massively collaborative maths research) project on non-transitive dice. There’s an arXiv preprint. There’s also a detailed write-up in Quanta, which is a magazine devoted to popular…

Multiple frame sampling

http://notstatschat.netlify.com/2024/04/26/multiple-frame-sampling/

Published: April 26, 2024 00:00

I’m writing code for multiple-frame surveys in the survey package now, and it’s at the stage where the basic stuff works (Revision 336 from r-forge) though there’s quite a bit more to implement. The canonical references are the papers by Lohr and Rao. This…

Importance weights

http://notstatschat.netlify.com/2024/04/19/importance-weights/

Published: April 19, 2024 00:00

When I wrote about weights I mentioned that there was in some senses a fourth type of weights after sampling weights, precision weights, and frequency weights. The idea is that sometimes you have weights that you want to apply to an estimating function,…

Assumptions

http://notstatschat.netlify.com/2024/04/14/assumptions/

Published: April 14, 2024 00:00

One problem in teaching statistics and communicating statistics and so on is “assumptions”. In fact, there’s at least two problems: Necessary vs sufficient The first problem is in maths communication. In maths you write down some assumptions and show they…

Quantitative graphics?

http://notstatschat.netlify.com/2024/04/05/intuitive-graphics/

Published: April 5, 2024 00:00

Two interesting examples from my e-bike: The first is common in e-bikes. The charge indicator is a set of five little rectangles inside a battery outline, which makes sense. It’s very non-linear, though. The first little rectangle is almost half the…