Github user AhyoungRyu commented on the issue:
https://github.com/apache/zeppelin/pull/2098
@1ambda Appreciate for such detailed explanation!
Regarding `no-group`, I can assume the other ppl can be confused like me.
So it'll be better to add some description for that to the documentation. (you
already wrote all needed contents in your comments :D)
FYI I suggested to separate Helium related docs page from "Contribute"
section in the dropdown menu and create new section "Helium Framework" in
#2202(Helium is worth to have its own kk). So your new docs page "Writing
Zeppelin Visualization: Transformation(or another name?)" can be put under this
section.
And maybe more self-descriptive name would be better instead of just
`Transformation`(hard to recognize at a glance what kind of transformation is).
Something like `Writing Zeppelin Visualization: Advanced Chart Configuration`..
But I don't wanna hang this PR because of docs. Surely you can handle it in
another PR.
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