stan-dev/stan — pull request #807 by PeterLi2016 (2014-07-25 15:47:48+00:00)
Title: Feature/frechet distr

From alyst:
If X is Weibull-distributed, then 1/X would follow Frechet distribution.
So it might be useful to have `weibull`/`frechet` pair in Stan, just like the `gamma`/`inv_gamma` one.

This replaces #789