lib/svmkit/preprocessing/standard_scaler.rb in svmkit-0.2.0 vs lib/svmkit/preprocessing/standard_scaler.rb in svmkit-0.2.1

@@ -21,11 +21,11 @@
       # Return the vector consists of the standard deviation for each feature.
       # @return [Numo::DFloat] (shape: [n_features])
       attr_reader :std_vec
 
       # Create a new normalizer for centering and scaling to unit variance.
-      def initialize()
-        self.params = {}
+      def initialize
+        @params = {}
         @mean_vec = nil
         @std_vec = nil
       end
 
       # Calculate the mean value and standard deviation of each feature for scaling.