Class: Array

Inherits:

Object

Object
Array

show all

Defined in:: lib/mean/sum.rb,
lib/mean/mean.rb

Instance Method Summary collapse

Instance Method Details

#mean ⇒ `Object`



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# File 'lib/mean/mean.rb', line 2

def mean
  sum / size
end

#sum ⇒ `Object`



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# File 'lib/mean/sum.rb', line 2

def sum
  inject(nil){|sum, x| sum ? sum + x : x}
end