IClustersType.Count

Syntax

Count: Integer;

Description

The Count property returns number of clusters.

Example

Sub Main;

Var

hc: SmHierarchicalClusterAnalysis;

Obj: ISlSeries;

x1: Array Of Double;

Dist: ISlDistance;

res, i, j: Integer;

D: Double;

masDouble: Array Of Double;

Cls: IClustersType;

Cl: IClusterType;

Begin

hc := New SmHierarchicalClusterAnalysis.Create;

x1 := New Double[3];

//add characteristics, in this case 5 objects with 3 characteristics

x1[0] := 1; x1[1] := 1; x1[2] := 1;

Obj := hc.Objects;

Obj.Add.Value := x1;

x1[0] := 2; x1[1] := 3; x1[2] := 2;

Obj.Add.Value := x1;

x1[0] := 3; x1[1] := 6; x1[2] := 3;

Obj.Add.Value := x1;

x1[0] := 4; x1[1] := 8; x1[2] := 10;

Obj.Add.Value := x1;

x1[0] := 5; x1[1] := 8; x1[2] := 0;

Obj.Add.Value := x1;

hc.ClusterLink := ClusterLinkType.Centroid;

hc.ClusterCount := 2;

Dist := hc.Distance;

Dist.Type := ObjectDistanceType.EuclideanSqr;

Dist.Standartization := StandartizationType.ScaleStd;

res := hc.Execute;

If res <> 0 Then

Debug.WriteLine(hc.Errors);

Else

Debug.WriteLine("=== Cluster centers ===");

Cls := hc.Clusters;

For i := 0 To Cls.Count - 1 Do //by clusters

Debug.Write("Cluster №" + i.ToString + " ");

Cl := Cls.Item(i);

masDouble := Cl.Center;

For j := 0 To masDouble.Length-1 Do //by all characteristics in a cluster

d := masDouble[j];

Debug.Write(d.ToString + ", ");

End For;

Debug.WriteLine("");

End For;

End If;

End Sub Main;

After executing the example the console window displays cluster centers:

Module execution started

=== Cluster centers===

Cluster №0 1.5, 2, 1.5,

Cluster №1 4, 7.333333333333333, 4.333333333333333,

Module execution finished