code: def DP_analysis(DP):
      """
      Analysis DP with interpretation table.
  
      :param DP: discriminant power
      :type DP : float
      :return: interpretation result as str
      """
      try:
          if DP < 1:
              return "Poor"
          if DP >= 1 and DP < 2:
              return "Limited"
          if DP >= 2 and DP < 3:
              return "Fair"
          return "Good"
      except Exception:  # pragma: no cover
          return "None"
  
file_path: pycm/pycm/pycm_interpret.py
label_desc: Use image node_id 6 for calling a global function with example usage: DP_analysis(DP) and returns: str, str, str, str, str