So I’ve had some good luck implementing a bunch of models. But there’s one that I’m having trouble getting to work (ie sample). It dies before sampling with a very long bit cryptic error message. One salient point is: ValueError: Bad initial energy: inf. The model might be misspecified. I’m fairly s…

Ah! The problem is that data['B']-data['A'] is sometimes negative, so the power in I = ((data['B']-data['A'])**(1./(data['DB']-data['DA'])))-1. causes I to be a complex number when data['B']-data['A']<0

Have you check out the diagnostic mentioned here: [image] Frequently Asked Questions Questions Getting NaN or Inf during NUTS or VI (e.g., 'Bad initial energy: inf. The model might be misspecified., NaN occurred in optimization.) Most likely I would say is the Determi…

Model specification problem?

Questions

junpenglao January 31, 2018, 4:46pm 2

Have you check out the diagnostic mentioned here:

Most likely I would say is the Deterministic node P_chooseB being outside of [0, 1] (the support of p in Bernoulli)

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Model specification problem?

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