code: def LR_CI_calc(mean, SE, CV=1.96):
      """
      Calculate confidence interval for likelihood ratio +/- using log method.
  
      :param mean: mean of data
      :type mean: float
      :param SE: standard error of data
      :type SE: float
      :param CV: critical value
      :type CV:float
      :return: confidence interval as tuple
      """
      try:
          CI_down = math.exp(math.log(mean) - CV * SE)
          CI_up = math.exp(math.log(mean) + CV * SE)
          return (CI_down, CI_up)
      except Exception:
          return ("None", "None")
  
file_path: pycm/pycm/pycm_ci.py
imports: from __future__ import division
  import math
label_desc: Use image node_id 5 for calling a global function with example usage: LR_CI_calc(mean, SE, CV) and returns: CI_down,  CI_up, str,  str