org.ddogleg.clustering.gmm

Class AssignGmm_F64

java.lang.Object

org.ddogleg.clustering.gmm.AssignGmm_F64

All Implemented Interfaces:

java.io.Serializable, AssignCluster<double[]>

public class AssignGmm_F64
extends java.lang.Object
implements AssignCluster<double[]>

Given a mixture model it will compute the hard and soft assignment of a point to Gaussians in the cluster.

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor and Description
AssignGmm_F64(AssignGmm_F64 original) Copy constructor
AssignGmm_F64(java.util.List<GaussianGmm_F64> mixture) Use reference to provided mixtures

Method Summary

Modifier and Type	Method and Description
int	assign(double[] point) Assigns the point to cluster which is the best fit.
void	assign(double[] point, double[] fit) Performs a soft assignment of a point to all the clusters.
AssignCluster<double[]>	copy() Creates an exact copy of this class.
java.util.List<GaussianGmm_F64>	getMixture()
int	getNumberOfClusters() Total number of clusters.
void	setMixture(java.util.List<GaussianGmm_F64> mixture)

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

AssignGmm_F64

public AssignGmm_F64(java.util.List<GaussianGmm_F64> mixture)

Use reference to provided mixtures

AssignGmm_F64

public AssignGmm_F64(AssignGmm_F64 original)

Copy constructor

Method Detail

assign

public int assign(double[] point)

Description copied from interface: AssignCluster

Assigns the point to cluster which is the best fit.

Specified by:

assign in interface AssignCluster<double[]>

Parameters:

point - Point which is to be assigned

Returns:

Index of the cluster from 0 to N-1

assign

public void assign(double[] point,
                   double[] fit)

Description copied from interface: AssignCluster

Performs a soft assignment of a point to all the clusters. Clusters with a better fit will have a larger value in 'fit'. The sum of fit is equal to 1, unless everything is zero. Then it is zero.

Specified by:

assign in interface AssignCluster<double[]>

Parameters:

point - Point which is to be assigned

fit - Storage for relative fit quality of each cluster. Length must be at least the number of clusters.

getNumberOfClusters

public int getNumberOfClusters()

Description copied from interface: AssignCluster

Total number of clusters.

Specified by:

getNumberOfClusters in interface AssignCluster<double[]>

Returns:

The total number of clusters.

copy

public AssignCluster<double[]> copy()

Description copied from interface: AssignCluster

Creates an exact copy of this class.

Specified by:

copy in interface AssignCluster<double[]>

Returns:

Copy of class

getMixture

public java.util.List<GaussianGmm_F64> getMixture()

setMixture

public void setMixture(java.util.List<GaussianGmm_F64> mixture)