cluster_validity_measures
                        Internal Cluster Validity Measures
comparing_partitions    External Cluster Validity Measures and Pairwise
                        Partition Similarity Scores
emst_mlpack             Euclidean Minimum Spanning Tree
gclust                  Hierarchical Clustering Algorithm Genie
genieclust-package      The Genie Hierarchical Clustering Algorithm
                        (with Extras)
gini_index              Inequity (Inequality) Measures
mst                     Minimum Spanning Tree of the Pairwise Distance
                        Graph
