%DeepSee.extensions.clusters.PearsonGamma

Class %DeepSee.extensions.clusters.PearsonGamma Extends %RegisteredObject [ System = 4 ]

This class calculates Pearson-Gamma index which is a correlation coefficient between distance between two points and a binary function whether they belong to the same cluster.

Pearson-Gamma index is useful when clustering is used for dimension reduction i.e. the process of reducing the number of random variables under consideration

Validity indices are used in Cluster Validation and determination of the optimal number of clusters.

Properties

Model

Property Model As AbstractModel;

Methods

calculate

Method calculate(Output sc As %Status) As %Double

calculateForSample

Method calculateForSample(SampleSize As %Integer, Output sc As %Status) As %Double