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lib/classifier/extensions/vector.rb

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#sum

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sum(identity = 0, &block) click to toggle source

# File lib/classifier/extensions/vector.rb, line 10
def sum(identity = 0, &block)
  return identity unless size > 0

  if block_given?
    map(&block).sum
  else
    inject { |sum, element| sum + element }.to_f
  end
end

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