import csv

import os

import re

#Calculates the average difference between corresponding elements of two lists.

def average_difference(list1, list2):

if not list1 or not list2 or len(list1) != len(list2):

return None

differences = [abs(float(x) - float(y[:-2])) for x, y in zip(list1, list2)]

return sum(differences) / len(differences)

#Extracts a specific column from a text file and returns it as a list.

def column_to_list(file_path, column_index, delimiter='|'):

try:

with open("output.txt", 'r') as file:

column_list = []

for line in file:

values = line.strip().split(delimiter)

if column_index < len(values):

column_list.append(values[column_index])

return column_list

except FileNotFoundError:

print(f"Error: File not found at '{file_path}'")

return []

except Exception as e:

print(f"An error occurred: {e}")

return []