I've added a few figures to the userguide (see commit 5de2d1af79fabca56b5fa8fca159938fa023ae6a).
The Java code that generates the data is a fairly trivial example of usage of the samplers provided in module commons-rng-sampling.
It is attached to this page.
Do you think it's worth adding it to the repository (in commons-rng-examples)?
If so, should I also add the script that generated the plots (it calls the "gnuplot" software)?