Blurb::
Multifidelity Polynomial Chaos Expansion as an emulator model.

Description:: 
Selects a multifidelity polynomial chaos expansion (MF PCE) surrogate model 
to use in the Bayesian likelihood calculations.  Most specification options are 
carried over for using MF PCE as a surrogate within the Bayesian framework.

Topics::
Examples::
Theory::
Faq::
See_Also::	method-multifidelity_polynomial_chaos
