# File lib/ai4r/clusterers/clusterer.rb, line 36 def euclidean_distance(a, b) dist = 0.0 a.each_index do |index| if a[index].is_a?(Numeric) && b[index].is_a?(Numeric) dist = dist + ((a[index]-b[index])*(a[index]-b[index])) end end return dist end