Why isn't a deterministic continuous variable optimized by find_MAP?

[junpenglao]

@rodrigobraz

The result does not include mu even though it is a continuous random variable. Maybe this is so because is a deterministic variable, but the documentation does not refer to determinism. Should mu be included, or should the documentation be improved?

mu is not a named variable in the graph, so it is ignored. If you want to keep the record of this variable in the point or trace, you can wrap it in a deterministic: mu = pm.Deterministic('mu', alpha + beta[0]*X1 + beta[1]*X2)