Method Detail

• clusterPriors

  double[] clusterPriors()
                  throws java.lang.Exception

  Returns the prior probability of each cluster.

  Returns:

  the prior probability for each cluster

  Throws:

  java.lang.Exception - if priors could not be returned successfully

• logDensityPerClusterForInstance

  double[] logDensityPerClusterForInstance​(Instance instance)
                                    throws java.lang.Exception

  Computes the log of the conditional density (per cluster) for a given instance.

  Parameters:

  instance - the instance to compute the density for

  Returns:

  an array containing the estimated densities

  Throws:

  java.lang.Exception - if the density could not be computed successfully

• logDensityForInstance

  double logDensityForInstance​(Instance instance)
                        throws java.lang.Exception

  Computes the density for a given instance.

  Parameters:

  instance - the instance to compute the density for

  Returns:

  the density.

  Throws:

  java.lang.Exception - if the density could not be computed successfully

• logJointDensitiesForInstance

  double[] logJointDensitiesForInstance​(Instance inst)
                                 throws java.lang.Exception

  Returns the logs of the joint densities for a given instance.

  Parameters:

  inst - the instance

  Returns:

  the array of values

  Throws:

  java.lang.Exception - if values could not be computed

• distributionForInstance

  double[] distributionForInstance​(Instance instance)
                            throws java.lang.Exception

  Returns the cluster probability distribution for an instance.

  Specified by:

  distributionForInstance in interface Clusterer

  Parameters:

  instance - the instance to be clustered

  Returns:

  the probability distribution

  Throws:

  java.lang.Exception - if computation fails