Author Archives: Brendon J. Brewer

About Brendon J. Brewer

I am a senior lecturer in the Department of Statistics at The University of Auckland. Any opinions expressed here are mine and are not endorsed by my employer.

Plausibility Theory Podcast, Episode 1: Keagan Brewer

I enjoy podcasts, so had a go at recording one. I hope you enjoy it.    

Posted in Podcast | Leave a comment

A Rosenbrock challenge for MCMC folks…

Note: After I posted this the first time, I started to distrust my own results. I am confident the properties of the problem are probably something like what my figures show, but perhaps different in a couple of details. I … Continue reading

Posted in Computing, Inference | Leave a comment

A frequentist does his maths homework

Question 1: Solve the quadratic equation . Answer: The two solutions are given by the quadratic formula where , , and . Therefore, after some simplification, the two solutions are and . I don’t like much how there is an ambiguity … Continue reading

Posted in Inference | Leave a comment

Gains from trade versus(?) subjective wellbeing

This year I’ve been learning basic economics. It’s a cool subject. One interesting concept is “gains from trade”. The idea is that a person probably only participates in a trade if they think they’d benefit from it. If two parties … Continue reading

Posted in Economics, Entropy, Inference | 3 Comments

Markets and Auckland Housing

Like many similar cities around the world, Auckland housing has become much more expensive very rapidly over the last few years. There are many reasons for this, and it is having various effects, positive for some (e.g., those whose houses … Continue reading

Posted in Economics | Leave a comment

A JAGS-like interface to DNest4

As you probably know, I use Diffusive Nested Sampling (the latest implementation of which is DNest4) to do almost all of my data analysis. It works on pretty much all problems I throw at it, as long as the likelihood function … Continue reading

Posted in Inference, Personal | Leave a comment

An article about experts, and joining Heterodox Academy

Any followers of this blog who aren’t on Facebook or Twitter might be interested in this article I wrote about expertise and its limits. In related news, I have signed up as a supporter of Heterodox Academy, a group advocating viewpoint … Continue reading

Posted in Personal | 6 Comments