The “Pie chart” is very useful for comparing the contribution of different nodes to e.g., a total sum. Select the data nodes in the order you want them to appear in the plot (clockwise in the pie). Click on the “Pie chart” icon on the toolbar, or select “Pie chart” from the “Gallery” menu. Then enter your “Pie settings” into the dialog box, and click the “OK” button. The “Pie chart” appears.
