When I am using trace data for posterior calculations like -
- generating trace summary - az.summary(trace)
- Converting to a dataframe - az.convert_to_inference_data(obj=trace).to_dataframe(include_coords=False,groups=“posterior”)
- Plotting trace - az.plot_trace(trace)
For each of these functions, I am getting the following error -
Got error No model on context stack. trying to find log_likelihood in translation.
The error goes away if I give the with model context like this -
Can someone explain what that error is? and is it required to give context stack while using trace for posterior calculations?