# File lib/ai4r/clusterers/diana.rb, line 72
      def max_diameter_cluster(clusters)
        max_index = 0
        max_diameter = 0
        clusters.each_with_index do |cluster, index|
          diameter = cluster_diameter(cluster)
          if diameter > max_diameter
            max_index = index
            max_diameter = diameter
          end
        end
        return max_index
      end