I wanted to ask about the solution of parametric models.
Is it possible to solve parametric model (like Austria PVC model solved using Gabi, Excel, and Umberto given in Practical handbook for MFA) using STAN?
STAN does not support dynamic modelling of stocks as was used in the PVC Austia Example. You would have to do the modelling in e.g. Excel and import the results into STAN to perform further computations.
STAN can also not handle abitrary functions of variables (e.g. X = 2*Y + Z). The equations that are generated automatically due to the design of the graphical model can be found under www.stan2web.net/support/mfa-basics/system-of-equations.