colaboratory will not acknowledge arviz after installation and import

问题

In Google's colaboratory, installed arviz then did import arviz without error, but in a code cell, pm.plot_posterior(samples) gets error: arviz not installed.

Trying to plot Bayesian code

pm.plot_posterior(samples)

I expect a plot

回答1:

Install Arviz prior to importing PyMC3, otherwise it apparently cannot find it. In your case, simply restarting the runtime (Runtime > Restart runtime...) should get it working.

回答2:

Hi did you try adding the cell magic %matplotlib inline? This may be an issue where jupyter-notebook doesn't "know" to render the plot inline

来源：https://stackoverflow.com/questions/57733115/colaboratory-will-not-acknowledge-arviz-after-installation-and-import