How to print out value of the parameters?

Questions
1

I see a lot of examples which plots the derived model parameters, but I am not able to print out the mean values. for the example arma_example.py, I tried print("mu = ", mu), it actually says

NameError: name ‘mu’ is not defined

How do I print out these parameter values? both mean and variance.

2

If you meant print out the mean and variance of the posterior, the recommended way is to use pm.summary like pm.summary(trace), which returns a pandas dataframe that contains the information including mean and standard deviation of the posterior.

3

Thank you. That’s what I was looking for.