From be95000d7c14174286ddc8f1717c4b6c46e0c1cc Mon Sep 17 00:00:00 2001
From: Christoph Helma <helma@in-silico.ch>
Date: Thu, 24 Sep 2015 15:41:18 +0200
Subject: mean method for Arrays

---
 lib/overwrite.rb | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/lib/overwrite.rb b/lib/overwrite.rb
index 08baa39..8234cbf 100644
--- a/lib/overwrite.rb
+++ b/lib/overwrite.rb
@@ -87,6 +87,10 @@ class Array
     (sorted[(len - 1) / 2] + sorted[len / 2]) / 2.0
   end
 
+  def mean
+    self.inject{ |sum, el| sum + el }.to_f / self.size
+  end
+
 end
 
 module URI
-- 
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