1 files changed, 11 insertions, 8 deletions
diff --git a/lib/similarity.rb b/lib/similarity.rb
index deeb81f..346a342 100644
--- a/lib/similarity.rb
+++ b/lib/similarity.rb
@@ -1,11 +1,4 @@
-class Similarity
-
-  # Get Tanimoto similarity
-  # @param [Array<Array<String>>]
-  # @return [Float]
-  def self.tanimoto fingerprints
-    ( fingerprints[0] & fingerprints[1] ).size/( fingerprints[0] | fingerprints[1] ).size.to_f
-  end
+class Distance
 
   # Get Euclidean distance 
   # @param [Array<Array<Float>>]
@@ -14,6 +7,16 @@ class Similarity
     sq = variables[0].zip(variables[1]).map{|a,b| (a - b) ** 2}
     Math.sqrt(sq.inject(0) {|s,c| s + c})
   end
+end
+
+class Similarity
+
+  # Get Tanimoto similarity
+  # @param [Array<Array<String>>]
+  # @return [Float]
+  def self.tanimoto fingerprints
+    ( fingerprints[0] & fingerprints[1] ).size/( fingerprints[0] | fingerprints[1] ).size.to_f
+  end
 
   # Get cosine similarity
   #   http://stackoverflow.com/questions/1838806/euclidean-distance-vs-pearson-correlation-vs-cosine-similarity