Class: Array

Inherits:
Object
  • Object
show all
Defined in:
lib/array_metrics/common.rb

Instance Method Summary collapse

Instance Method Details

#-@ ⇒ Object 



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# File 'lib/array_metrics/common.rb', line 9

def -@
  self.map{ |e| if e.nil? then e else -e end }
end

#mean ⇒ Object 



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# File 'lib/array_metrics/common.rb', line 4

def mean
  return 0.0 if size==0
  self.inject(0.0){|sum,e| sum+e}.to_f/self.size
end