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matplotex

0.3.0
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A library for generating plots in Elixir.

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matplotex lib matplotex figure numer.ex
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lib/matplotex/figure/numer.ex 

defmodule Matplotex.Figure.Numer do

@moduledoc false

  def round_to_best(value) when value > 10 do

    factor = value |> :math.log10() |> floor()



    base = 10 |> :math.pow(factor) |> round()

    value |> round() |> div(base) |> Kernel.*(base)

  end



  # TODO: get best strategy for ticks less than 1

  def round_to_best(value) do

    value

  end

end