"Advanced Charts - missing values in legend"
BartN
New Altair Community Member
It seems like missing values are also identified as a possible nominal value and get a color or shape assigned in the legend of Advanced Charts.
However, the value name is not indicated as ?, missing or Unknown, but one of the other nominal values is used. Hence you get two colors or shapes in the legend with the same value name. This seems like a bug.
Of course, the missing values could be filtered out, but then points are lost in the plot that have valid values on the other attributes on the numerical axis.
However, the value name is not indicated as ?, missing or Unknown, but one of the other nominal values is used. Hence you get two colors or shapes in the legend with the same value name. This seems like a bug.
Of course, the missing values could be filtered out, but then points are lost in the plot that have valid values on the other attributes on the numerical axis.
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Answers
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Thanks for reporting, I created an internal bug report for this.
Best, Marius0