Class: Array

Inherits:

Object

• Object
• Array

Defined in:

lib/biopsy/base_extensions.rb

Overview

Hash

Instance Method Summary

• #mean ⇒ Object

  return the arithmetic mean of the elements in the array.

Instance Method Details

#mean ⇒ Object

return the arithmetic mean of the elements in the array. Requires the array to contain only objects of class Fixnum. If any other class is encountered, an error will be raised.

# File 'lib/biopsy/base_extensions.rb', line 57

def mean
  self.inject(0, :+) / self.size.to_f
end