Method: Utilities::Statistics#mean

Defined in:
lib/utilities/utilities.rb

#mean ⇒ Object Also known as: average

Calculate the mean of the array, as long as all objects respond to / operator



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# File 'lib/utilities/utilities.rb', line 52

def mean
  a = flatten.compact.to_stat
  (a.size > 0) ? a.sum.to_f / a.size : nil
end