Github user agoodm commented on the issue:
https://github.com/apache/zeppelin/pull/1534
@felixcheung The main idea is that the output is set to HTML if
`angular=False` (default). If `angular=True`, the figure data gets bound to the
angular display system by figure id and the output is set to angular. This is
essentially explained already in the tutorial notebook. Would you like to see
some separate documentation somewhere else? If so, where do you think I should
put it?
As for unit tests for pyspark, I believe this would be easy enough to do
but in that case I would need to exclude them from the main test suite as we do
with python because matplotlib is required. We should probably have python,
matplotlib, pandas, and pandasql automatically downloaded for our CI tests,
most likely using conda since those packages are in binary form.
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