cluster_em              Clustering Algorithm
cluster_em_outlier      Clustering and Outlier Detection Algorithm
cluster_plot            Clustering Plot
confusionMatrix         Confusion Matrix
errorRate               This function calculates the error rates for
                        the different EM algorithms
matchCluster            Correspondence between clusters
normalizedMI            Computes the normalized mutual information
trimmed_bic             Determines the number of components in the
                        distribution.
