- Comparing values of a variable, represented by bar length, across the Y-axis categories.

- XY (value axes) bar: Comparing X-values of a data series represented by bar length, across the sorted values of Y-axis*.
- XY (value axes) stacked bar: Comparing the contribution of two or more X-series to the total across the sorted values of Y-axis*, where the bar length represents the sum of the parts that make the total.

* In the value axes bar/stacked bar charts, both Y and X axes require continuous data.

- Comparing the contribution of two or more X series to the total across the Y-axis categories, where the bar length represents the sum of the parts that make the total.
- When using 100% stacked bar, the bar length represents the normalized sum of the parts that make the total.