Line and area charts

Use line and area charts to track value trends over time. You can also use a line or area chart x-axis to represent a field value other than time.

Data formatting

Line charts can represent one or more data series. Area charts represent multiple data series.

If a search generates multiple series, each line or area in the chart appears in a different color.

To make sure that a search generates data series correctly, check the Statistics tab below in Search. The Statistics table should have at least two columns for a single series, and three or more columns for multiple series.

Statistics table order and chart axes

Line and area charts get x-axis values from the first column in the statistics table. The next table columns contain y-axis values.

As an example, any search using the timechart reporting command generates a table where _time is the first column. A line or area chart generated with this search has a _time x-axis.

Search results not structured as a table with valid x-axis or y-axis values cannot generate line or area charts. For example, using the eval or fields commands might change search result structure.

Generate a line or area chart

1. Select the line or area chart using the visual editor by clicking the Add Chart button ( ) in the editing toolbar and either browsing through the available charts, or by using the search option.
2. Select the chart on your dashboard so that it's highlighted with the blue editing outline.
3. (Optional) Set up a new data source by adding a query to the Search window.
4. To choose an existing search, close the window and select the visualization. If the Configuration panel doesn't appear, click the Configuration button ( ) to bring up the Configuration panel and click +Setup Primary Data Source to choose an existing search.

Configuration Panel options for line and area charts

You can use the Configuration panel to configure the following line 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 or location of the visualization, or the Position & Size section of the Configuration panel for pixel perfect sizing and placement.

General

Use Null Values to do one of the following:
• Show markers for any disconnected data points a gap.
• Connect null data points to zero data points.
• Connect them to the next positive data point.
• Use the following Stack Mode (area charts only) options:

  Stack option	Column or bar appearance	Use case
  Unstacked	Areas for different series share the same space on the chart.	An unstacked chart is useful for a lower number of series. As the number of series increases, the chart can become more difficult to understand.
  Stacked	Each series area is shown separately.	Use a stacked area chart to highlight the relative volume, frequency, or importance of a series. See the stacked chart example below.
  Stacked 100%	The chart shows distribution percentage for each series over the whole data set.	Use stacked 100% to focus on data distributions.

• Show Data Values
  Choose whether to show no data values, all data values, or only the minimum and maximum data values.

Axes

• Use X Axis title to name your x-axis.

• Use Y Axis title to name your y-axis.

Legend

• Use Position to choose the position of the legend.

• Use Truncation to choose how legend labels are truncated when they overflow the layout boundaries by choosing where to place ellipses (...)

Drilldown
Drilldown for a line or area chart lets users click on a part of the chart to open an internal or external URL.

Code
Select your visualization or its search to view and edit the source code in real-time.

Source options for line and area charts

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 viz.line and viz.area. These options are added to the options field of the visualization stanza. For example, the following example shows the addition of foreground color and font color settings using a hex code:

"viz_25NNIqLF": {
			"type": "viz.line",
			"options": {
				"foregroundColor": "#0000FF",
                                "fontColor": "#0000FF"
			},
			"dataSources": {
				"primary": "ds_gcEN4c7Q"
			}
		} 

Line chart options

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

Property	Type	Default	Description
annotation.categoryColors	object	N/A	Map comma-delimited, hexadecimal color values to specified categories. For example, {"count": "#ff0000","percent": "#cb3b43"}.
axisY2.enabled	boolean	false	Enable a y2-axis for chart overlays.
axisY2.fields	string	N/A	Specify a field to map to a second y-axis for chart overlays.
axisY.includeZero	boolean	false	Specify whether the y-axis range includes zero.
axis2Y.includeZero	boolean	false	Specify whether the y2-axis range includes zero.
axisY.maximumNumber	(number | auto)	auto	Specify the maximum number for the visible y-axis range.
axisY2.maximumNumber	(number | auto)	auto	Specify the maximum number for the visible y2-axis range.
axisY.minimumNumber	(none | auto)	auto	Specify the minimum number for the visible y-axis range.
axisY2.minimumNumber	(none | auto)	auto	Specify the minimum number for the visible y2-axis range.
axisY.scale	(linear | log)	linear	Specify the scale type that applies to a numerical y-axis.
axisY2.scale	(linear | log)	linear	Specify the scale type that applies to a numerical y2-axis.
axisTitleX.text	string	N/A	Specify the title of the x-axis.
axisTitleY.text	string	N/A	Specify the title of the y-axis.
axisTitleY2.text	string	N/A	Specify the title of the y2-axis.
axisTitleX.visibility	(visible | collapsed)	visible	Specify whether to show the title of the x-axis.
axisTitleY.visibility	(visible | collapsed)	visible	Specify whether to show the title of the y-axis.
axisTitleY2.visibility	(visible | collapsed)	visible	Specify whether to show the title of the y2-axis.
gridLinesX.showMajorLines	boolean	true	Specify whether major grid lines are visible on the x-axis.
gridLinesY.showMajorLines	boolean	true	Specify whether major grid lines are visible on the y-axis.
gridLinesY2.showMajorLines	boolean	true	Specify whether major grid lines are visible on the second y-axis.
chart.overlayFields	string	N/A	Specify a field or a space or comma-delimited list of fields that to map to the y2-axis.
chart.resultTruncationLimit	number	50000	Specify the number of data points rendered in a chart.
backgroundColor	string	N/A	Specify the color used for the chart background by using the hex code. For example, "#0000FF".
data.fieldListMode	(show_hide | hide_show)	hide_show	Specify the order in which to apply the fieldShowList and fieldHideList filters.
data.fieldShowList	array	N/A	Specify a list of fields to show in the results. For example: ["#FF0000", "#000000", "#FFFFFF"].
data.fieldHideList	array	N/A	Specify a list of fields to hide in the results. For example: ["#FF0000", "#000000", "#FFFFFF"].
fontColor	string	N/A	Specify the color used for fonts using the hex code. For example, "#0000FF" .
foregroundColor	string	N/A	Specify the color used for the chart foreground by specifying the hex code. For example, "#0000FF" .
fieldColors	object	N/A	Specify the color used for a field by specifying the hex code. For example, {"count": "#ff0000","percent": "#cb3b43"}. If you would like to maintain a space between two fields, you can use the backslash and quotes to surround the string and maintain the space. In this example: "{China:#45D4BA,US:#9AE6F7, \"Korea, South\" :#2F8AA7,SanMarino:#C0891E,Singapore:#780621,\"Cruise Ship\":#4EB2D2}" Korea, South and Cruise Ship will have spaces when they appear in the visualization.
legend.labelStyle.overflowMode	(ellipsisEnd | ellipsesMiddle | ellipsisStart | ellipsesNone)	ellipsesMiddle	Specify how to display legend labels when they overflow the layout boundaries by replacing overflow text with an ellipsis.
legend.placement	(right | left | top | bottom | none)	right	Specify the location of the legend on the panel.
legend.mode	(standard | seriesCompare)	standard	Provides visual and behavior settings for the tooltip and legend.
seriesColors	array	(dark and light mode defaults) ["#1E93C6", "#F2B827", "#D6563C", "#6A5C9E", "#31A35F"]	Specify the hex color codes for the bars to use in order from largest to smallest. For example, ["#FF0000","#0000FF","#008000"].
drilldown	(all | none)	all	Specify whether to enable or disable drilldown for the chart.
chart.nullValueMode	(gaps | zero | connect)	gaps	Specify how area and line charts handle null values.
chart.showDataLabels	(none | all | minmax)	none	Specify whether you want line charts to display no labels, all labels, or only the min and max labels.
chart.showMarkers	boolean	true	Specify whether to show markers in line charts.
field DashStyles	(solid | shortDash | shortDot | shortDashDot | shortDashDotDot | dot | dash | longDash | dashDot | longDashDot | longDashDotDot)	solid	Specify a dash style to use for each field. For example, '{"count":"longDashDot", "percent":"longDashDotDot"}'.
field DashStyle	(solid | shortDash | shortDot | shortDashDot | shortDashDotDot | dot | dash | longDash | dashDot | longDashDot | longDashDotDot)	solid	Specify a dash style for all line series in the chart.
layout.splitSeries	boolean	false	Set to true to split a multi-series chart into separate charts that are stacked from top to bottom; one for each series.
layout.splitSeries.allowIndependentYRanges	boolean	false	Specify whether split series charts have independent y-ranges.
lineWidth	number	2	Specify the line width, in pixels, for all of the lines in a series.

Area chart options

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

Property	Type	Default	Description
annotation.categoryColors	object	N/A	Map comma-delimited, hexadecimal color values to specified categories. For example, {"count": "#ff0000","percent": "#cb3b43"}.
areaFillOpacity	number	0.75	Specify the opacity for the area fill using numbers between and including 0 and 1. This relates to the opacity percentages in the visual editor. 0 is transparent and 1 is completely opaque.
axisY2.enabled	boolean	false	Enable a y2-axis for chart overlays.
axisY2.fields	string	N/A	Specify a field that you want to map to a second y-axis for chart overlays.
axisLabelsY2.integerUnits	boolean	false	Specify whether to extend the y2-axis to include whole major tick marks.
axisY.includeZero	boolean	false	Specify whether the y-axis range includes zero.
axis2Y.includeZero	boolean	false	Specify whether the y2-axis range includes zero.
axisY.maximumNumber	(number | auto)	auto	Specify the maximum number for the visible y-axis range.
axisY2.maximumNumber	(number | auto)	auto	Specify the maximum number for the visible y2-axis range.
axisY.minimumNumber	(none | auto)	auto	Specify the minimum number for the visible y-axis range.
axisY2.minimumNumber	(none | auto)	auto	Specify the minimum number for the visible y2-axis range.
axisY.scale	(linear | log)	linear	Specify the scale type that applies to a numerical y-axis.
axisY2.scale	(linear | log)	linear	Specify the scale type that applies to a numerical y2-axis.
axisTitleX.text	string	N/A	Specify the title of the x-axis.
axisTitleY.text	string	N/A	Specify the title of the y-axis.
axisTitleY2.text	string	N/A	Specify the title of the y2-axis.
axisTitleX.visibility	(visible | collapsed)	visible	Specify whether to show the title of the x-axis.
axisTitleY.visibility	(visible | collapsed)	visible	Specify whether to show the title of the y-axis.
axisTitleY2.visibility	(visible | collapsed)	visible	Specify whether to show the title of the y2-axis.
gridLinesX.showMajorLines	boolean	true	Specify whether major grid lines are visible on the x-axis.
gridLinesY.showMajorLines	boolean	true	Specify whether major grid lines are visible on the y-axis.
gridLinesY2.showMajorLines	boolean	true	Specify whether major grid lines are visible on the second y-axis.
chart.overlayFields	string	N/A	Specify a space, or a field or, comma-delimited list of fields that should be maps to the y2-axis.
backgroundColor	string	N/A	Specify the color used for the chart background by using the hex code. For example, "#0000FF" .
data.fieldListMode	(show_hide | hide_show)	hide_show	Specify the order in which to apply the fieldShowList and fieldHideList filters.
data.fieldShowList	array	N/A	Specify a list of fields to show in the results. For example: ["#FF0000", "#000000", "#FFFFFF"].
data.fieldHideList	array	N/A	Specify a list of fields to hide in the results. ["#FF0000", "#000000", "#FFFFFF"].
fontColorstring	string	N/A	Specify the color used for fonts (axis labels, legends) using the hex code. For example, "#0000FF" .
foregroundColor	string	N/A	Specify the color used for the chart foreground by specifying the hex code. For example, "#0000FF".
fieldColors	object	N/A	Specify the color used for a field by specifying the hex code. For example: {"count": "#ff0000","percent": "#cb3b43"}. If you would like to maintain a space between two fields, you can use the backslash and quotes to surround the string and maintain the space. In this example: "{China:#45D4BA,US:#9AE6F7, \"Korea, South\" :#2F8AA7,SanMarino:#C0891E,Singapore:#780621,\"Cruise Ship\":#4EB2D2}" Korea, South and Cruise Ship will have spaces when they appear in the visualization.
legend.labelStyle.overflowMode	(ellipsisEnd | ellipsesMiddle | ellipsisStart | ellipsesNone)	ellipsesMiddle	Specify how to display legend labels when they overflow the layout boundaries by replacing overflow text with an ellipsis.
legend.placement	(right | left | top | bottom | none)	right	Specify the location of the legend on the panel.
legend.mode	(standard | seriesCompare)	standard	Provides visual and behavior settings for the tooltip and legend.
seriesColors	string	Dark mode: "#212527", Light mode: "#FFFFFF"	Specify the hex color codes for the area chart. For example: "[#FF0000,#0000FF,#008000]"
drilldown	(all | none)	all	Specify whether to enable or disable drilldown for the chart.
chart.nullValueMode	(gaps | zero | connect)	gaps	Specify how area and line charts handle null values.
chart.stackMode	(default | stacked | stacked100)	default	Specify stacking options.
chart.resultTruncationLimit	number	50000	Specify a limit for the number of data points rendered in a chart.
chart.showDataLabels	(none | all | minmax)	none	Specify whether you want area charts to display no labels, all labels, or only the min and max labels.
chart.showLines	boolean	true	Specify whether you want lines to show in area charts.
layout.splitSeries	boolean	false	Set to true to split a multi-series chart into separate charts that are stacked from top to bottom; one for each series.
layout.splitSeries.allowIndependentYRanges	boolean	false	Specify whether split series charts have independent y-ranges.

Default properties

In addition to the settings in the options field, there are two default fields that you can set. These are not options, but should be placed at the same level as the options field.

showProgressBar shows a progress bar as a visualization loads and is set to false by default. showLastUpdated shows the last time the visualization was refreshed and is set to false by default.

You can enable these features by adding the properties to a visualization, and changing the settings to true.

In the following example, the visualization will override the default for showProgressBar and show a progress bar as it loads.

	"viz_tpRnLS1I": {
		"type": "viz.line",
		"showProgressBar": true,
		"options": {
			"showSparkline": false,
			"backgroundColor": "#ffffff"
		},
		"title": "Does have a progress bar",
		"description": "Due to viz override",
		"dataSources": {
			"primary": "ds_o7IqGHcO"
		}