re-write of HMC code in the book Probabilistic Programming & Bayesian Methods for Hackers to PyStan2 CmdStanPy (due to multiple feature changes in PyStan3, I decided to make it to CmdStanPy)

bonus: a working example in Julia + Stan: stanjl_chap2ex1.jl

original book: https://github.com/CamDavidsonPilon/Probabilistic-Programming-and-Bayesian-Methods-for-Hackers

here are just code, not notebook, comments whatsoever

DISCLAIMER: just an attempt, so not official, neither guaranteed to work on your machine

other resources:

• Stan+Arviz.py: https://arviz-devs.github.io/arviz/schema/PyStan_schema_example.html
• test0*.py: https://www.tensorflow.org/probability/examples/Modeling_with_JointDistribution