Using version 7.4, I have run Example 3.5 in the User's Manual 3 ways: (a) as provided (U1 is specified categorical), (b) as mixture model, and (c) with U1 specified categorical but using Bayes estimator.
Estimates for methods (a) & (b) match, but (c) has different estimates.
Forgive what is probably a na´ve question, but I have been unable to find information about why (c) would differ from (a) & (b), and how the (c) estimates could be interpreted (e.g.: OR for a & b are easily understood).
Reference or brief explanation appreciated. Thanks...