fix: avoid runtime warnings in vp and parameter_transformer

acerbilab / pyvbmc

PyVBMC: Variational Bayesian Monte Carlo algorithm for posterior and model inference in Python

https://acerbilab.github.io/pyvbmc/

BSD 3-Clause "New" or "Revised" License

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Closed Solosneros closed 2 years ago

Solosneros commented 2 years ago

Two fixes:

parameter_transformer() (direct transform) now avoids divide by zero warnings now.
vp.pdf(origflag=True) outside or on the bounds is now 0

Both cases are sufficiently tested.