Blurb::

(Experimental Capability) Evaluate the posterior density and output to
the specified file

Description::

This keyword will allow the evaluation of the posterior density for
all of the prior samples, typically specified with the number given in
`pushforward_samples`.  The density will be printed either to a file
named `pdens.tx`' as a default, or to the file specified in
`posterior_density_export_filename`.

Topics::

Examples::

Theory::

Faq::

See_Also::
