To show the trend over time in indicator scores when you need to apply curve fitting, create a time series widget with a spline visualization.

About this task

A spline visualization replaces the straight line of a line visualization with a curve. As with a line visualization, use a spline visualization to show the trend over time in the indicator scores. Use a spline instead of a line when you need to fit a curve to your indicator scores.

In the following example, the trend line and 95% confidence interval is shown with a spline visualization of the number of open incidents.

1. Navigate to Performance Analytics > Widgets and click New.
2. In the Name field, give the widget a name that reflects the information being displayed.
3. In the Type field, select Time series.
   If you change the value of Type after you fill in other fields, those fields are cleared.
4. In the Visualization field, select Spline.
5. In the Indicator field, select the main indicator for which you want to show scores.
6. (Optional) Fill in any of the following fields:

   Field	Description
   Breakdown and Element	Only the scores that match the specified element of this breakdown are shown. Select values for both Breakdown and Element. Otherwise, only scores that are not associated with any element of the breakdown are shown.
   2nd Breakdown and Element	Drill down to a second level of breakdown and element, if a first-level breakdown and element have been specified.
   Time series	Runs a function on the indicator scores for a specific time period, such as a 7-day sum or average. For more information, see Time series aggregations in the Analytics Hub and widgets.
   Previous period chart	Compares the scores of the main indicator in similar periods. The Column visualization works well for previous period charts. Also consider setting a Color scheme. Activating Previous Period Chart disables any secondary Widget Indicators.
   Label	Specifies a custom label for the main indicator.
   Color	A single color that applies only to the scores for the main indicator. This field overrides any color selected in Color scheme.
   Color scheme	A spectrum of colors for the scores for all indicators. If a spectrum cannot be applied, only the first color is used. You can create your own color scheme instead of using a provided color scheme. For more information about creating color schemes, see Create a color scheme for widget visualizations.
   Follow element	Applies only when this widget is placed in a breakdown dashboard. Select this option for the widget to follow the element that the user selects interactively on the dashboard. See Using breakdowns on dashboards. Selecting this option removes the ability to set a second breakdown and element on the widget.
   Followed breakdown	Breakdown dashboard configurations specify breakdown sources, not specific breakdowns. The same breakdown source can be used for multiple breakdowns. Therefore, select this option to set which of the possible breakdowns to follow. For example, consider the indicator Number of open incidents. This indicator uses two breakdowns: Assigned to, and Created by. Both breakdowns are based on the Users.Active breakdown source. You create a widget for this indicator and you select Follow element on this widget. You also need to select Followed breakdown and specify either the Assigned to or the Created by breakdown. This option is available only if Follow element is selected.

7. (Optional) Review the Settings tabs and change settings as desired.
8. Click Submit.