lib/head_music/style/analysis.rb in head_music-0.16.0 vs lib/head_music/style/analysis.rb in head_music-0.16.2

@@ -17,20 +17,20 @@
         @annotations ||= @ruleset.analyze(subject)
       end
 
       def fitness
         return 1.0 if annotations.length == 0
-        fitness_scores.inject(:+).to_f / fitness_scores.length
+        @fitness ||= fitness_scores.inject(:+).to_f / fitness_scores.length
       end
 
       def adherent?
         fitness == 1
       end
 
       private
 
       def fitness_scores
-        annotations.map(&:fitness)
+        @fitness_scores ||= annotations.map(&:fitness)
       end
     end
   end
 end