A pie chart represents the relative size of values as slices of a circular graph. The pie chart visualization is ideal for visualizing Datasets that naturally produce a complete whole, such as the number of tasks executed in a time period by a continuously running task engine. Note that Observe’s pie chart defaults to rendering as a ring with a shaded center, this a style decision that reduces human estimation errors.

Pie chart settings

Click Chart settings to configure the properties for a pie chart.

Setting	Description
Encoding	Configure the slices in the pie chart: Select Color to define what each slice represents. Select Angle to define the numeric field defining each slice.
Value formatting	Configure how the values in the chart are represented. Select a number unit type, such as decimal, unit, or currency. Select a locale, notation, compact display, and sign display Select Hide grouping separators to remove the commas, periods, or spaces used to break up large numbers into readable blocks. Select the number of fraction digits and significant digits you want displayed.
Colors	Configure custom colors you want to use for each item in the chart.
Slices	Configure the sort order and maximum number of slices shown in the chart. Enable the Others slice to combine the data beyond the maximum number of slices into a single slice.
Presentation	Configure an inner radius for the chart as a pie, donut, or ring. Enable Show values to print the numerical values in each slice of the pie chart.
Legend and tooltip	Customize the legend in the chart: Select whether you want to have a visible legend, its position, and whether to display as a list or table. Select the sort order of the legend, either ascending or descending.