I used the Anaconda–spyder to run a Example about Negative Binomial Regression. this example is from the website ：https://docs.pymc.io/notebooks/GLM-negative-binomial-regression.html.
However, the result of the example is very Terrible.
I have the image of the result in Screenshot.
I feel that the running environment of pymc3 is error，if I canget the ideas to deal with this trouble, I will so happy!!!
