docs: def cast_values_csvs(d, idx, x):
      """
      Attempt to cast string to float. If error, keep as a string.
  
      :param dict d: Data
      :param int idx: Index number
      :param str x: Data
      :return any:
      """
      try:
          d[idx].append(float(x))
      except ValueError:
          d[idx].append(x)
          # logger_misc.warn("cast_values_csv: ValueError")
          # logger_misc.warn("ValueError: col: {}, {}".format(x, e))
      except KeyError as e:
          logger_misc.warn("cast_values_csv: KeyError: col: {}, {}".format(x, e))
  
      return d