Small update to Metropolis sampler.
Small update to Metropolis sampler.


Former-commit-id: ea064183bd56227199af358a56803ad2816d53b6 [formerly 6d36eb04af55dec2381bf2edfcd477f3ae224cfb]
Former-commit-id: f4212becf072c98f9044faa2dd078b9815125ec6
justinbois/bebi103_utils