# -*- coding: utf-8 -*-
"""
Created on Thu Jun 25 16:42:05 2015

@author: Nicolas Hoermann
"""

import numpy as np
import matplotlib.pyplot as plt
import csv

filenames = ["HF.txt", "MP2.txt", "B3LYP.txt"]

for fn in filenames:
    dx = []
    dy = []
    with open(fn, 'rb') as f:
        reader = csv.reader(f)
        for row in reader:
            dx.append(float(row[1]))
            dy.append(float(row[2]))
        
        plt.plot(dx, dy)
        plt.xlabel("distance r")
        plt.ylabel("energy")
plt.show()