ITimeSeries.StartIndex

Fore Syntax

StartIndex: Integer;

Fore.NET Syntax

StartIndex: integer;

Description

The StartIndex property returns start index for series.

Comments

To get the number of series calculation dates use the following formula: ITimeSeries.EndIndex - StartIndex + 1.

Fore Example

This example describes custom method. The data series is passed by points.

Add links to the MathFin, Ms system assemblies.

Public Function UserFunc(Input: ITimeSeries): Double;
Begin
    If (Input.EndIndex - Input.StartIndex) > 50
        Then Return Math.Log10(Input.CurrentValue);
        Else Return Double.Nan
    End If;
End Function UserFunc;

The method returns base-10 logarithm of the series if it contains more than 50 points.

Fore.NET Example

The requirements and result of the Fore.NET example execution match with those in the Fore example.

Imports Prognoz.Platform.Interop.MathFin;
Imports Prognoz.Platform.Interop.Ms;
…
Public Function UserFunc(Input: ITimeSeries): Double;
Var
    Math: MathClass = New MathClass();
Begin
    If (Input.EndIndex - Input.StartIndex) > 50
        Then Return Math.Log10(Input.CurrentValue As double);
        Else Return Double.Nan
    End If;
End Function UserFunc;