Special Stacking Bar Chart Properties
A stacking bar chart draws each series as a portion of a stacked bar cluster, the number of clusters being the number of points in the data. Each bar displays the nth data point in each series. Positive values are displayed above the X-axis, and negative values are displayed below the X-axis. You can create floating bars by either hiding or excluding specific data sets, or draw the chart as a 100 percent stacking bar chart.
Floating Bar Charts