Express > Express Assembly Interfaces > ILanerBoxMethodSettings > ILanerBoxMethodSettings.Param

ILanerBoxMethodSettings.Param

Syntax

Param: Variant;

Description

The Param property determines series transformation parameters.

Comments

It is used when the ILanerBox.ExecuteMethodEx method has the Method parameter set to LanerBoxMethod.TermInfoMethod. Method parameters are passed as an array containing four elements at maximum:

Param[0]: MsInversion. It determines the method of initial transformation applied to the series.
Param[1]: MsInversionLag. It determines the period, in which the initial series transformation will be executed.
Param[2]: Integer. It determines a lag for the period of initial series transformation. This element is taken into account if value of the Param[1] element is set.
Param[3]. The following mutually exclusive options are available:

Param[3]: String. Lag is passed.
Param[3]: DateTime. Date is passed.
Param[3]: Boolean. Indicates that a data series is passed.

Example

Executing the example requires a form with a button named Button1, the LanerBox component named LanerBox1 and the UiErAnalyzer component that is a data source for LanerBox. A workbook of the time series database should be loaded to UiErAnalyzer1.

The example is executed on clicking the button.

Sub Button1OnClick(Sender:Object; Args: IMouseEventArgs);
Var
    Sett: ILanerBoxMethodSettings;
    Param: Array[4] Of Variant;
Begin
    Sett := New LanerBoxMethodSettings.Create;
    Sett.TrySelfExecute := True;
    Sett.CreateDerivedSeries := False;
    Param[0] := MsInversion.Diff;
    Param[1] := MsInversionLag.PrecidingYear;
    Param[2] := -3;
    Sett.Param := Param;
    LanerBox1.ExecuteMethodEx(LanerBoxMethod.TermInfoMethod, Sett);
End Sub Button1OnClick;

After executing the example the selected workbook series are converted to calculated ones calculated as increase of series values to the previous year with a lag of 3.