ISmHighlightExceptions.MahalanobisDistances

Syntax

MahalanobisDistances: Array;

Description

The MahalanobisDistances property returns a series of Mahalanobis distances.

Comments

The property is relevant if ISmHighlightExceptions.IsContinuousData = True, that is, data is quantitative.

Example

To execute the example, add a link to the Stat system assembly.

Sub UserProc;
Var
    method: SmHighlightExceptions;
    v1,v2,v3,v4: Array[11] Of Double;
    i,res: Integer;
Begin
    method := New SmHighlightExceptions.Create;
    v1[0]:=284.8;   v2[0]:=199.9;   v3[0]:=2.8;  v4[0]:=40.8;
    v1[1]:=238.7;   v2[1]:=190.0;   v3[1]:=5.5;  v4[1]:=43.6;
    v1[2]:=287.9;   v2[2]:=189.8;   v3[2]:=5.6;  v4[2]:=39.4;
    v1[3]:=269.3;   v2[3]:=206.9;   v3[3]:=6.3;  v4[3]:=29.8;
    v1[4]:=187.4;   v2[4]:=159.8;   v3[4]:=10.3; v4[4]:=43.3;
    v1[5]:=369.3;   v2[5]:=188.9;   v3[5]:=1.9;  v4[5]:=54.3;
    v1[6]:=354.0;   v2[6]:=163.0;   v3[6]:=6.3;  v4[6]:=79.1;
    v1[7]:=706.4;   v2[7]:=163.6;   v3[7]:=9.0;  v4[7]:=66.8;
    v1[8]:=267.7;   v2[8]:=214.5;   v3[8]:=7.8;  v4[8]:=56.3;
    v1[9]:=182.8;   v2[9]:=194.3;   v3[9]:=8.8;  v4[9]:=64.5;
    v1[10]:=603.8;  v2[10]:=280.9;  v3[10]:=7.3; v4[10]:=102.4;
    // Choose series:
    method.Data.Clear;
    method.Data.Add.Value := v1;
    method.Data.Add.Value := v2;
    method.Data.Add.Value := v3;
    method.Data.Add.Value := v4;
    // Data is quantitative:
    method.IsContinuousData := True;
    // Method of calculating Mahalanobis distances:
    method.HEDistance := HEDistanceType.DispersionrEllepceMahalanobisFast;
    // Median deviation:
    method.MedianDeviationFraction := 0.5;
    // Run calculation and show results:
    res := method.Execute;
    Debug.WriteLine("MahalanobisDistances: ");
    For i := 0 To method.MahalanobisDistances.Length - 1 Do
        Debug.WriteLine(i.ToString + ": " + method.MahalanobisDistances[i].ToString);
    End For;
End Sub UserProc;

After executing the example the console window displays a series of Mahalanobis distances.