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Add bar charts #29

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kdorr opened this issue Aug 16, 2018 · 0 comments

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kdorr commented Aug 16, 2018

Bar charts aren't supported yet in mpl-altair.

Implementation Notes

Marks should be handled in _marks.py
Plotting different data types in a bar plot gives different types of bar charts in Altair (vertical, horizontal, skinny bars, fat bars).
Plotting a categorical y against a categorical x gives a heatmap-like chart in Altair.
Adding a color encoding does different things depending on the data type. Sometimes the chart gets stacked, sometimes it doesn't.

For more information

Altair user_guide

kdorr added the enhancement label

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