This is my first time with STAN (PySTAN) and before investing my time to learn seriously, I would like to kindly ask you following questions:
1. I calculate the data using a code (Forward Model) written in Python, which include one main code and two subroutines used in main code. I suppose I can’t call my forward model code directly in the model block. In this case, my question is: Do I have to re-write my forward model code ? should it be in STAN language ?
2. If I end up writing the code in the language suggested in (1.), How should I call it in the model block ?
3. If there are examples explaining something I asked, Kindly refer those also.
Looking forward for your kind replies. I will appreciate your great help.