Extract BarPoint data from a column or bar series.
Also serves the two marks MAIDR reads as a bar chart with a different
glyph — a dot plot's point and a lollipop's stem — which carry the same
category and value and differ only in what the chart is called.
Extract BarPoint data from a column or bar series.
Also serves the two marks MAIDR reads as a bar chart with a different glyph — a dot plot's point and a lollipop's stem — which carry the same category and value and differ only in what the chart is called.