Class: Array

Inherits:
Object
  • Object
show all
Defined in:
lib/core_extensions/array.rb

Instance Method Summary collapse

Instance Method Details

#mean ⇒ Object 



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# File 'lib/core_extensions/array.rb', line 33

def mean
  sum.to_f / size
end

#sum ⇒ Object 



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# File 'lib/core_extensions/array.rb', line 29

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