![Divide and count: A test for spatial randomness](https://blogs.sas.com/content/iml/files/2011/08/t_dividecount.png)
Last week I generated two kinds of random point patterns: one from the uniform distribution on a two-dimensional rectangle, the other by jittering a regular grid by a small amount. My show choir director liked the second method (jittering) better because of the way it looks on stage: there are