Question about warnings in fort_spec
This is not an issue but a question.
petitRADTRANS there can be a rather large number of the following two warnings printed:
warning: root must be bracketed for zbrent
Tridag routine failed!
Presumably this is not a problem and happens when some extreme/unphysical parameters are sampled in the prior space? However, in the posterior there can also be some samples for which the zbrent warning occurs. Should such samples have been excluded from the posterior? For example by setting the log-likelihood to -inf?