module UmbrellioUtils::Rounding
Public Instance Methods
fancy_round(number, rounding_method: :round, ugliness_level: 1)
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# File lib/umbrellio_utils/rounding.rb, line 7 def fancy_round(number, rounding_method: :round, ugliness_level: 1) return 0 unless number.positive? log = Math.log(number, 10).floor coef = 2**ugliness_level (number * coef).public_send(rounding_method, -log) / coef.to_f end
super_round(number, rounding_method: :round)
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# File lib/umbrellio_utils/rounding.rb, line 14 def super_round(number, rounding_method: :round) return 0 unless number.positive? coef = 10**Math.log(number, 10).floor num = number / coef.to_f best_diff = best_target = nil [1.0, 1.5, 2.5, 5.0, 10.0].each do |target| diff = target - num next if rounding_method == :ceil && diff.negative? next if rounding_method == :floor && diff.positive? if best_diff.nil? || diff.abs < best_diff best_diff = diff.abs best_target = target end end (best_target.to_d * coef).to_f end