Module: Bumpspark::Scale

Included in:
Graph
Defined in:
lib/bumpspark/scale.rb

Instance Method Summary collapse

Instance Method Details

#scaled_numbers ⇒ Object 



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# File 'lib/bumpspark/scale.rb', line 5

def scaled_numbers
  nums = numbers.empty? ? [0] : numbers
  min, max = nums.min, nums.max
  width = max - min
  return [1] * nums.size if width == 0
  width = width * @scale
  nums.map do |result|
    ((result - min) * 100 / width.to_f).to_i
  end
end