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.
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.