Method: Array#sum

Defined in:
lib/array_statistics.rb

#sum(&value_block) ⇒ Object

Returns the sum of all the values in this array.

Like most methods in this package, this method takes an optional block that defines the “value” of the objects in the array. This block can be safely skipped if the array contains numbers.



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# File 'lib/array_statistics.rb', line 208

def sum(&value_block) # :yields: element
  value_block = proc{|element| element} unless block_given?
  s = 0
  each  do |element| 
    s = s + value_block.call(element)
  end
  s
end