DirectAgglomerate

• To use DirectAgglomerate, you first need to load the Hierarchical Clustering Package using Needs["HierarchicalClustering`"].

• DirectAgglomerate[m] labels each element by its row position in the matrix m.

• DirectAgglomerate gives a Cluster object.

• The cluster hierarchy may be viewed using DendrogramPlot.

• The distance matrix m can be any symmetric matrix.

• The method used to determine intercluster dissimilarity can be specified using the Linkage option.

• Possible settings for the Linkage option include:

• The function f defines a distance from a cluster k to the new cluster formed by fusing clusters i and j.

• The arguments supplied to f are d_ik, d_jk, d_ij, n_i, n_j, and n_k, where d is the distance between clusters and n is the number of elements in a cluster.