get_f_k                 Get the f(K) vector
get_k_threshold         Get the 'k_threshold'
kselection              Selection of K in K-means Clustering
kselection-package      Selection of K in K-Means Clustering
num_clusters            Get the number of clusters.
num_clusters_all        Get all recommended numbers of clusters
set_k_threshold         Set the 'k_threshold'
