lib/svmkit/tree/decision_tree_classifier.rb in svmkit-0.2.9 vs lib/svmkit/tree/decision_tree_classifier.rb in svmkit-0.3.0

@@ -1,9 +1,9 @@
 # frozen_string_literal: true
 
+require 'svmkit/validation'
 require 'svmkit/base/base_estimator'
 require 'svmkit/base/classifier'
-require 'ostruct'
 
 module SVMKit
   # This module consists of the classes that implement tree models.
   module Tree
     # Node is a class that implements node used for construction of decision tree.