ISmGeometricExtrapolation.MissingData

Syntax

Description

The MissingData property determines missing data treatment parameters.

Comments

By default missing data is not treated.

Example

Add a link to the Stat system assembly.

Sub UserProc;
Var
    GExtra: SmGeometricExtrapolation;
    s: Array[15] Of Double;
    res, i: Integer;
Begin
    GExtra := New SmGeometricExtrapolation.Create;
    // values of variables
    s[00] := 6209; s[01] := 6385; s[02] := 6752;
    s[03] := 6837; s[04] := 6495; s[05] := Double.Nan;
    s[06] := 7349; s[07] := 7213; s[08] := 7061;
    s[09] := 7180; s[10] := 7132; s[11] := Double.Nan;
    s[12] := 7473; s[13] := 7722; s[14] := 8088;
    // source series parameters
    GExtra.Serie.Value := s;
    // missing data treatment method
    GExtra.MissingData.Method := MissingDataMethod.LinTrend;
    // sample period
    GExtra.ModelPeriod.FirstPoint := 1;
    GExtra.ModelPeriod.LastPoint := 14;
    // forecast
    GExtra.Forecast.LastPoint := 20;
    // model calculation and output of results
    res := GExtra.Execute;
    If res <> 0 Then
        Debug.WriteLine(GExtra.Errors);
        Else
            Debug.WriteLine("Modeling series");
            Debug.Indent;
            For i := 0 To GExtra.Fitted.Length - 1 Do
                Debug.WriteLine(GExtra.Fitted[i]);
            End For;
            Debug.Unindent;
    End If;
End Sub UserProc;

After executing the example the console window displays the modeling series.