IIntercept.Mode

Syntax

Mode: InterceptMode;

Description

The Mode property determines mode of constant assignment.

Comments

If:

Mode = InterceptMode.InterceptMode, that is, constant value is defined manually; use the IIntercept.Estimate property to enter constant value.
Mode = InterceptMode.AutoEstimate, that is, constant value is estimated automatically; thus, use the IIntercept.Estimate property to get constant value.

Example

To execute the example, add links to the system assemblies Stat and MathFin.

Sub UserIntercept;
Var
    lr: ISmLinearRegress;
    Fact: Array[40] Of Double;
    Intercept: IIntercept;
    i: Integer;
    res: Integer;
Begin
    lr := New SmLinearRegress.Create;
    // Set values of the explained series
    For i := 0 To 39 Do
        Fact[i] := Math.RandBetween(-40, 40);
    End For;
    // Set explained series
    lr.Explained.Value := Fact;
    // Get parameters of constant in the model
    Intercept := lr.ModelCoefficients.Intercept;
    // Specify that the constant value is estimated automatically
    Intercept.Mode := InterceptMode.AutoEstimate;
    // Calculate the model
    res := lr.Execute;
    Debug.WriteLine(lr.Errors);
    If (res = 0) Then
        // Output value and coefficients of the constant
        Debug.WriteLine("Value: " + Intercept.Estimate.ToString);
        Debug.WriteLine("Probability: " + Intercept.Probability.ToString);
        Debug.WriteLine("Standard error: " + Intercept.StandardError.ToString);
        Debug.WriteLine(" t-statistic: " + Intercept.TStatistic.ToString);
    End If;
End Sub UserIntercept;

Example execution result: the console window displays value and coefficients of the constant.