From 92b9a86699a8760c16065bd529d19dc3d9304c2f Mon Sep 17 00:00:00 2001
From: Brian Underwood <brian@brian-underwood.codes>
Date: Tue, 9 May 2017 16:12:38 -0400
Subject: [PATCH] De-sum 2

---
 lib/decisiontree/id3_tree.rb | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/decisiontree/id3_tree.rb b/lib/decisiontree/id3_tree.rb
index 9097ebf..8df1483 100755
--- a/lib/decisiontree/id3_tree.rb
+++ b/lib/decisiontree/id3_tree.rb
@@ -120,7 +120,7 @@ module DecisionTree
       index = attributes.index(attribute)
 
       values = data.map { |row| row[index] }.uniq
-      remainder = values.sort.sum do |val|
+      remainder = values.sort.inject(0, :+) do |val|
         classification = data.each_with_object([]) do |row, result|
           result << row.last if row[index] == val
         end