Welcome to the unofficial Stan User Defined Functions project! Stan with batteries included!

There are numerous examples of functions written by the Stan community on the forum, the old google forum, and public repositories. The wealth of information, however, is not organized and can be hard to find. Secondly, because of resource constraints, many of these functions may never make it in to the official Stan project but are continuously re-written because people find them useful. This project attempts to gather those functions and show example usage.

A side benefit is that users may find the code helpful in learning Stan! Updates and PRs are welcome to keep the programs up-to-date.

If you wish to add a function please see: