SigmaUpper: Double;
SigmaUpper: double;
The SigmaUpper property determines an upper sigma limit.
Most of real time series include outliers. They can distort seasonality and trend estimations. The X11 method enables the user to reduce outliers influence by excluding the values that lie outside the specified range, or by converting these values. The range width is set by the lower (IMsCensus2Transform.SigmaLower) and the upper sigma limit.
The property use is given in the example for IMsCensus2Transform.SigmaLower.
See also: