Pie charts

Use a pie chart to show how different field values combine over an entire data set. Each slice of a pie chart represents the relative importance or volume of a particular category.

Data formatting

Pie charts represent a single data series.

Use a transforming command in a search to generate the single series.

For example, count events in each sourcetype field category.

...| stats count by sourcetype

Check the Statistics table in Search & Reporting after running the search to make sure that a single series is generated. The table should have two columns.

The example search generates the following table.

The first table column contains labels for each pie slice. The second column contains the numerical values that correspond to each label. The numerical values determine the relative size of each slice.

If the search generates a table with more than two columns, the extra columns are ignored.

Generate a pie chart

1. Select the pie chart using the visual editor by clicking the Add Chart icon ( ) in the editing toolbar and either browsing through the available charts, or by using the search option.
2. Select the pie chart on your dashboard so that it's highlighted with the blue editing outline.
3. Set up a new data source by adding a search to the Search with SPL window.
4. To select an existing data source, close the Configuration panel and reopen it. In the Data Configurations section, click +Setup Primary Data Source and click + Create Ad hoc Search to create a new search from this window. You can also choose a new ID that describes the search better than the default.

Configuration Panel options

You can use the Configuration panel to configure the following pie chart components.

Title

Give your visualization a name. This is also helpful when searching for individual visualizations in the dashboard definitions. This name is not the same as the automatically assigned unique ID.

Description

Give your visualization a description to explain what the user is viewing.

Data Configurations

Choose an existing ad hoc search or create a new one.

Position & Size
You can use your mouse to change the size of the panel, or the Position & Size section of the Configuration panel for pixel perfect sizing.

Appearance
Use this option to toggle between either the classic pie visualization, or a pie with a hole in the center.

Labels

• Toggle the Show Percent switch to show the percentage each slice of the pie takes up from the whole.

• Toggle the Show Labels switch to show the value of each slice.

Collapse Threshold

Specify the size threshold, as a percentage of the whole pie, at which point slices collapse into one consolidated slice. The number value must be between and including 1 and 0.01.

Collapse Slice Label

Name the collapsed slice.

Drilldown
Drilldown in a pie chart lets users click on a pie slice to open a secondary search using the clicked values. You can enable or disable drilldown in the Dashboard editor. See Use drilldown for dashboard interactivity for more details.

Code
Select your visualization or its search to view and edit the source code in real-time. You can also change the Visualization ID to a more readable ID to help identify this visualization in the source code.

Example

This search uses the bytes and sourcetype fields to generate a single series.

index = _internal | chart avg(bytes) over sourcetype

Here, the sourcetype column provides pie slice labels. The avg(bytes) column provides the relative size of each slice, as percentages of the sum of avg(bytes) returned by the search.

Source options for the pie chart

While some of these options can be set using the visual editor, there are additional options that can only be set in the source editor for splunk.pie. These options are added to the options field of the visualization stanza. For example, the following example shows the addition of background color settings using a hexadecimal code:

"viz_25NNIqLF": {
			"type": "splunk.pie",
			"options": {
				"backgroundColor": "#0000FF",
			},
			"dataSources": {
				"primary": "ds_gcEN4c7Q"
			}
		} 

Pie chart options

The following options are available for editing pie charts in the source editor:

Property	Type	Default	Description
label	string	> primary | seriesByIndex(0)	List of string values to display the pie chart labels.
backgroundColor	string	> themes.defaultBackgroundColor	Specify the color for the background. You may use a dataSource to apply the color. The default for enterprise light is "#ffffff". The default for enterprise dark is "#000000". The default for prisma dark is "#0b0c0e".
collapseLabel	string	other	Specify the label for the consolidated slice.
collapseThreshold	number	0.01	Specify the size threshold as a number between 0 and 1 (inclusive), of the whole pie at which slices collapse into one consolidated slice.
label	string[]	> primary | seriesByIndex(0)	List of string values to display the pie chart labels.
labelField	string	> label | getField()	Specify the field that corresponds to the labels.
labelDisplay	("values" | "valuesAndPercentage" | "off")	values	Specify whether to display the labels and/or slice percentages.
resultLimit	number	50000	Specify the number of data points rendered in a chart.
seriesColors	string[]	[#7B56DB,#009CEB,#00CDAF,#DD9900,#FF677B,#CB2196,#813193,#0051B5,#008C80,#99B100,#FFA476,#FF6ACE,#AE8CFF,#00689D,#00490A,#465D00,#9D6300,#F6540B,#FF969E,#E47BFE]	Specify the colors used for a series. For example, ["#FF0000", "#0000FF", "#008000"].
seriesColorsByField	object	n/a	Specify the colors used for specific pie slice labels. For example: {"April": "#008000", "May": "#FFA500"}.
showDonutHole	boolean	FALSE	Specify whether the pie should be a donut.
value	number[]	> primary | seriesByIndex(1)	List of numerical values to power the pie chart.
valueField	string	> value | getField()	Specify the field that corresponds to the data powering values.