Also called: Range Column, Range Bar, Cylinder Chart
The Span Chart displays a range of data by plotting two Y values per data point. Each Y value used is drawn as the upper, and lower bounds of a column/bar/cylinder. Sometimes range charts are referred as “floating” column/bar charts. Some data may look very nice and are easily understood in this form, in which the column floats in the chart, spanning a region from a minimum value to a maximum value.