lib/svmkit/pairwise_metric.rb in svmkit-0.2.9 vs lib/svmkit/pairwise_metric.rb in svmkit-0.3.0

@@ -1,6 +1,8 @@
 # frozen_string_literal: true
 
+require 'svmkit/validation'
+
 module SVMKit
   # Module for calculating pairwise distances, similarities, and kernels.
   module PairwiseMetric
     class << self
       # Calculate the pairwise euclidean distances between x and y.