lib/classifier/extensions/vector.rb in luisparravicini-classifier-1.3.8 vs lib/classifier/extensions/vector.rb in luisparravicini-classifier-1.3.9

@@ -4,18 +4,9 @@
 # These are extensions to the std-lib 'matrix' to allow an all ruby SVD
 
 require 'matrix'
 require 'mathn'
 
-# Conflicts with ActiveSupport
-unless Array.new.respond_to?(:sum)
-  class Array
-    def sum
-      inject(0) { |sum,term| sum += term  }.to_f
-    end
-  end
-end
-
 class Vector
   def magnitude
     sumsqs = 0.0
     self.size.times do |i|
       sumsqs += self[i] ** 2.0