Facet category order with missing data

[nicolaskruchten]

This seems like a bug: https://community.plot.ly/t/python-plotly-express-facet-col-facet-row-order-categories/33693

[emmanuelle]

Indeed. Do you think it should be part of the 4.5 milestone?

[nicolaskruchten]

Ideally yes! I'm hoping it's just a one-liner 🙈

[emmanuelle]

I'm on it FYI.

[nicolaskruchten]

This problem is actually somewhat generalized: in the example below we ask for Lunch to precede Dinner, and for the symbol sequence to be circle before square. The legend is ordered correctly, but Lunch is mapped to square instead of circle.