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  • Extreme.Statistics.Multivariate
    • DendrogramNode Class
    • DistanceMeasures Class
    • Factor Class
    • FactorAnalysis Class
    • FactorCountMethod Enumeration
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    • PartialLeastSquaresModel Class
    • PrincipalComponent Class
    • PrincipalComponentAnalysis Class
    • PrincipalComponentCollection Class
    • ScalingMethod Enumeration
    • SimilarityMatrix Class
  • DendrogramNode Class
    • Properties
    • DendrogramNode Methods

DendrogramNode Class

Extreme Optimization Numerical Libraries for .NET Professional
Represents a node in a dendrogram.
Inheritance Hierarchy

SystemObject
  Extreme.Statistics.MultivariateDendrogramNode

Namespace:  Extreme.Statistics.Multivariate
Assembly:  Extreme.Numerics (in Extreme.Numerics.dll) Version: 8.1.1
Syntax

C#
VB
C++
F#
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public class DendrogramNode
Public Class DendrogramNode
public ref class DendrogramNode
type DendrogramNode =  class end

The DendrogramNode type exposes the following members.

Properties

  NameDescription
Public propertyDistanceMeasure
Gets the distance measure between the two nodes of an agglomeration.
Public propertyIsLeaf
Gets whether the node represents a leaf or an agglomeration.
Public propertyLeftChild
Gets the left child of the node.
Public propertyLevel
Gets the number of nodes between this node and the root of the dendrogram.
Public propertyObservationIndex
Gets the index of the cluster. If the cluster is an agglomeration, then -1 is returned.
Public propertyPosition
Returns the horizontal position of the node.
Public propertyRightChild
Gets the right child of the node.
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Methods

  NameDescription
Public methodEquals
Determines whether the specified object is equal to the current object.
(Inherited from Object.)
Protected methodFinalize
Allows an object to try to free resources and perform other cleanup operations before it is reclaimed by garbage collection.
(Inherited from Object.)
Public methodGetHashCode
Serves as the default hash function.
(Inherited from Object.)
Public methodGetType
Gets the Type of the current instance.
(Inherited from Object.)
Protected methodMemberwiseClone
Creates a shallow copy of the current Object.
(Inherited from Object.)
Public methodToString
Returns a string that represents the current object.
(Inherited from Object.)
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Remarks

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.

See Also

Reference

Extreme.Statistics.Multivariate Namespace

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