Bar and Column Charts
In bar charts values are plotted as either horizontal bars or vertical columns.
Vertical, Horizontal and Stacked Bar Charts
Note
The following settings affect the different chart types.
Switch between vertical and horizontal bar charts by setting type to col or bar respectively.
When using stacked charts the overlap needs to be set to 100.
If bars are horizontal, x and y axes are reversed.

bar.py
This will produce four charts illustrating the various possibilities.
3D Bar Charts
You can also create 3D bar charts
bar3d.py
This produces a simple 3D bar chart
