Serie: IEmSerie;
Serie: Prognoz.Platform.Interop.Modeller.IEmSerie;
The Serie property determines the smoothable series.
If the smoothable series is not specified, the Hodrick-Prescott filter method calculation is not possible.
To execute the example, add a link to the Modeller system assembly.
Sub HodrickPrescottFilter;
Var
ExprMod: IExpressModeller;
Ar: Array[14] Of Double;
Serie: IEmSerie;
Sett: IEmHodrickPrescottFilterSettings;
Period: IEmPeriodSettings;
Begin
ExprMod := New ExpressModeller.Create;
Sett := ExprMod.CreateHodrickPrescottFilterSettings;
// Setting smoothable series
Ar[0] := 56; Ar[1] := 45; Ar[2] := 23; Ar[3] := 45;
Ar[4] := 65; Ar[5] := 23; Ar[6] := 54; Ar[7] := 87;
Ar[8] := 67; Ar[9] := 98; Ar[10] := 89; Ar[13] := 79;
Ar[11] := Double.Nan; Ar[12] := Double.Nan;
Serie := ExprMod.Series.Add(Ar, "X1", "Data series 1");
Sett.Serie := Serie;
// Setting smoothing parameter
Sett.SmoothingParameter := 0.5;
// Setting calculation periods
Period := Sett.Period;
Period.BeginPeriod := 0;
Period.EndPeriod := 13;
Period.EndFore := 4;
// Performing calculation
ExprMod.EvaluateMethod("C:\HodrickPrescottFilter.html", Sett, True);
End Sub HodrickPrescottFilter;
Example execution result: the Hodrick-Prescott Filter method is calculated with set parameters, calculation report is saved to the file C:\HodrickPrescottFilter.html.
Imports Prognoz.Platform.Interop.Modeller;
…
Public Shared Sub HodrickPrescottFilter();
Var
ExprMod: IExpressModeller;
Ar: Array[14] Of Double;
Serie: IEmSerie;
Sett: IEmHodrickPrescottFilterSettings;
Period: IEmPeriodSettings;
Begin
ExprMod := New ExpressModeller.Create();
Sett := ExprMod.CreateHodrickPrescottFilterSettings();
// Setting smoothable series
Ar[0] := 56; Ar[1] := 45; Ar[2] := 23; Ar[3] := 45;
Ar[4] := 65; Ar[5] := 23; Ar[6] := 54; Ar[7] := 87;
Ar[8] := 67; Ar[9] := 98; Ar[10] := 89; Ar[13] := 79;
Ar[11] := Double.Nan; Ar[12] := Double.Nan;
Serie := ExprMod.Series.Add(Ar, "X1", "Data series 1");
Sett.Serie := Serie;
// Setting smoothing parameter
Sett.SmoothingParameter := 0.5;
// Setting calculation periods
Period := Sett.Period;
Period.BeginPeriod := 0;
Period.EndPeriod := 13;
Period.EndFore := 4;
// Performing calculation
ExprMod.EvaluateMethod("C:\HodrickPrescottFilter.html", Sett, True);
End Sub HodrickPrescottFilter;
Example execution result: the Hodrick-Prescott Filter method is calculated with set parameters, calculation report is saved to the file C:\HodrickPrescottFilter.html.
See also: