Simple and fast clustering library
This gem provides a really simple way to cluster 2 dimensional points. It is based on the Hierclust gem by Brandt Kurowski, except that it does not cluster hierarchically. The aim of this gem is to provide the same clustering algorithm but to be as fast as possible.
sudo gem install fastcluster
require 'fastcluster' points = [[1, 1], [1, 2], [5, 9]] clusterer = Fastcluster::Clusterer.new(3, 0, points) clusterer.clusters.each do |cluster| puts cluster.x puts cluster.y puts cluster.size end
All points are initially clusters with size 1
Precluster - create a grid of size [resolution] and cluster the points in each grid space automatically
Combine two closest clusters, the new cluster has the summed size and the averaged distance (size weighted) between the clusters.
Loop to 3 until no cluster is less that [separation] apart or only one cluster remains
(The MIT License)
Copyright © 2009 Jeremy Wells
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