DendrogramNode Class

public class DendrogramNode

Public Class DendrogramNode

public ref class DendrogramNode

type DendrogramNode =  class end

The DendrogramNode type exposes the following members.

	Name	Description
	DistanceMeasure	Gets the distance measure between the two nodes of an agglomeration.
	IsLeaf	Gets whether the node represents a leaf or an agglomeration.
	LeftChild	Gets the left child of the node.
	Level	Gets the number of nodes between this node and the root of the dendrogram.
	ObservationIndex	Gets the index of the cluster. If the cluster is an agglomeration, then -1 is returned.
	Position	Returns the horizontal position of the node.
	RightChild	Gets the right child of the node.

	Name	Description
	Equals	Determines whether the specified object is equal to the current object. (Inherited from Object.)
	Finalize	Allows an object to try to free resources and perform other cleanup operations before it is reclaimed by garbage collection. (Inherited from Object.)
	GetHashCode	Serves as the default hash function. (Inherited from Object.)
	GetType	Gets the Type of the current instance. (Inherited from Object.)
	MemberwiseClone	Creates a shallow copy of the current Object. (Inherited from Object.)
	ToString	Returns a string that represents the current object. (Inherited from Object.)

Use the DendrogramNode class to access the results of a HierarchicalClusterAnalysis in a dendrogram representation. A dendrogram is a tree-like structure that shows the complete history of how the analysis was performed.

The IsLeaf property indicates whether the cluster is a leaf node (an observation from the original data set), or a merged cluster. The ObservationIndex returns the index of this observation. The LeftChild and RightChild properties specify the two clusters that were merged, while DistanceMeasure returns the distance between the two merged clusters. Level returns the number of nodes between the current node and the root node. The root node is at level 0.

A dendrogram is also useful to give a graphical representation of the results. The Position property gives the horizontal position of the node. The leaf nodes (observations) have integer positions that correspond to their dendrogram order and can be used as one coordinate. It is centered over the two clusters that were merged. The DistanceMeasure or Level properties can be used as the other coordinate.

Reference