Posts

A probability question that was posed in an interview for a major financial firm.
Last updated on 5 min read probability theory, interview question

In this new covid-19 world it happens more and more often that I need to record full-screen videos, for example for lectures. This is …
2 min read practical

A friend was working on a paper and found himself in the situation of having to defend the null hypothesis that a particular effect is …
2 min read R, statistic

This took me some time to make it work, so I’ll write the details here for the benefit of my future self and anyone else facing similar …
2 min read R, Stan

The European Election results reveal a shift towards parties that support a soft or no Brexit compared to votes in 2014. Instead, major …
2 min read politics

1 min read books

In experimental psychology and neuroscience the classical approach when comparing different models that make quantitative predictions …
8 min read R, tutorial

Photo ©Roxie and Lee Carroll, www.akidsphoto.com. In my previous lab I was known for promoting the use of multilevel, or mixed-effects …
13 min read R, Stan, tutorial

Generating random variables with given variance-covariance matrix can be useful for many purposes. For example it is useful for …
4 min read R, self-study, note

In the study of human perception we often need to measure how sensitive is an observer to a stimulus variation, and how her/his …
12 min read R, data-analysis, psychophysics