Question

我有两个csv文件，现在将它们称为csv1（Source，Destination，Bits，Energy，PktCount，Time）和csv2（Source，Destination，Bits，Energy，PktCount，Time）这样生成的新csv具有标头为（Address，Energy，Time）的标头，合并时将其从csv1的（Source，Energy，Time）列和csv2的（Destination，Energy，Time）列中获取。在python中实现？

CSV1：

 Source,Destination,Bits,Energy,PktCount,Time
 1,3,320,9.999983999999154773195,1,0
 3,4,320,9.99996799947074134565,1,2319
 1,3,320,9.999951999998309546390,2,7327
 3,4,320,9.99993599894148269130,2,10365
 2,3,384,9.999916799998736846248,1,12156
 3,4,384,9.99989759830637230608,3,14999
 1,3,320,9.999900799997464319585,3,15111
 3,4,320,9.99986559777711365173,4,18112
 1,3,320,9.999868799996619092780,4,22651
 3,4,320,9.99983359724785499738,5,24974
 1,3,320,9.999836799995773865975,5,30010

CSV2：

 Source,Destination,Bits,Energy,PktCount,Time
 1,2,320,9.999984,1,751
 1,3,320,9.999984,1,1002
 3,4,320,9.999984,1,3329
 3,1,320,9.999967999999154773195,1,3408
 3,2,320,9.999968,2,3458
 1,2,320,9.999952,3,8135
 1,3,320,9.99995199947074134565,2,8409
 3,4,320,9.999968,2,11376
 3,1,320,9.999935999998309546390,2,11441
 3,2,320,9.999936,4,11504
 2,1,384,9.999916799998309546390,3,12964
 2,3,384,9.99991679894148269130,3,13293
 3,4,384,9.9999488,3,16010
 1,3,320,9.99988159830637230608,4,16181
 3,4,320,9.9999328,4,19122
 3,1,320,9.999884799997464319585,4,19187
 3,2,320,9.999900799998736846248,5,19253
 1,2,320,9.999884799998736846248,6,23458
 1,3,320,9.99984959777711365173,5,23724
 3,4,320,9.9999168,5,25981

所需的输出：

Address Energy Time 1 9.999984 0 3 9.999968 2319 1 9.999952 7327 2 9.999984 751 3 9.999984 1002 4 9.999984 3329 1 9.999968 3408 2 9.999968 3458

通过检查时间列，您可以检查是否从csv1中添加了某些行，并且从csv2中添加了某些行，顺序无关紧要。我只想将其合并。

这是我尝试过的方法，但它会覆盖以前的csv文件中的数据

import pandas as pd
import matplotlib.pyplot as plt
import csv
import numpy as np
df1 = pd.read_csv('C:\\Users\\Hp\\Documents\\XYZ.csv', usecols = ['Source','Energy','Time'])
df2 = pd.read_csv('C:\\Users\\Hp\\Documents\\XYZ1.csv', usecols = ['Destination','Energy','Time'])
np.savetxt('C:\\Users\\Hp\\Documents\\wee.csv', df1, delimiter =',')
with open('C:\\Users\\Hp\\Documents\\wee.csv') as f:
     for _ in range(len(df1)):
          next(f)
     np.savetxt('C:\\Users\\Hp\\Documents\\wee.csv', df2, delimiter =',')

如何使用python中的特定列合并两个csv文件？

0 个答案: