Merge pull request #113 from ZeusWPI/feature/frecendebt

frecendebt

app/models/user.rb

@@ -46,10 +46,14 @@ class User < ActiveRecord::Base
                                 .limit(num_orders)
                                 .distinct
                                 .pluck(:created_at)
-    self.frecency = last_datetimes.map(&:to_time).map(&:to_i).sum / (num_orders * 10)
+    self.frecency = (last_datetimes.map(&:to_time).map(&:to_i).sum / (num_orders * 10)) * self.multiplier
     self.save
   end
 
+  def multiplier
+    Math.atan(self.balance / 10) + (Math::PI / 2)
+  end
+
   def balance
     @balance || begin
       if Rails.env.test?