<commit_before># coding: utf-8
class Integer

  def μ
    case
      when (self < 1)                                       then nil
      when (square_free? and prime_factors.uniq.size.even?) then 1
      when (square_free? and prime_factors.uniq.size.odd?)  then -1
      when (not square_free?)                               then 0
    end
  end

  alias :möbius :μ
  alias :mobius :μ
end<commit_msg>Use #ω in #μ<commit_after># coding: utf-8
class Integer

  def μ
    case
      when (self < 1)                 then nil
      when (square_free? and ω.even?) then 1
      when (square_free? and ω.odd?)  then -1
      when (not square_free?)         then 0
    end
  end

  alias :möbius :μ
  alias :mobius :μ
end
{'fraction_non_alphanumeric': 0.08391608391608392, 'fraction_numerical': 0.013986013986013986, 'mean_word_length': 1.6323529411764706, 'pattern_counts': {'":': 0, '<': 5, '<?xml version=': 0, '>': 3, 'https://': 0, 'lorem ipsum': 0, 'www.': 0, 'xml': 0}, 'pii_count': 0, 'substrings_counts': 0, 'word_list_counts': {'cursed_substrings.json': 2, 'profanity_word_list.json': 0, 'sexual_word_list.json': 0, 'zh_pornsignals.json': 0}}
{'dir': 'git-commits-cleaned', 'id': '1743986', 'n_tokens_mistral': 249, 'n_tokens_neox': 231, 'n_words': 80}