User-interactive routine to find clusters
Plot the f vs. delta plot, then wait for the user to select centers of clusters by left clicking the points. In general points with both large f and large delta are good candidates of cluster centroids. Selected centers are highlighted. Press ESC to end the selection.
FindClustersManual(distm, f, delta)
vector of local densities f(x). Same length of the number of observations.
vector of distances to the closest high ground delta(x). Same length of the number of observations.
a list of the following items:
clusters Cluster assignments. A vector of the same length as the number of observations.
centers: Indices of the clustering centers.
silhouette: Silhouette score from the final clustering result.
nclust: Number of clusters.
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