Question

我有以下文本文件，并希望从文件中完全删除（打开，高，低）。我想留下：日期，时间，关闭，向上，向下

这是示例文本文件：

"Date","Time","Open","High","Low","Close","Up","Down"
08/09/2018,17:00:00,2852.50,2852.50,2852.50,2852.50,109,0
08/09/2018,17:00:00,2852.25,2852.25,2852.25,2852.25,0,1
08/09/2018,17:00:00,2852.25,2852.25,2852.25,2852.25,0,2
08/09/2018,17:00:00,2852.50,2852.50,2852.50,2852.50,1,0
08/09/2018,17:00:00,2852.50,2852.50,2852.50,2852.50,1,0
08/09/2018,17:00:00,2852.50,2852.50,2852.50,2852.50,1,0
08/09/2018,17:00:00,2852.50,2852.50,2852.50,2852.50,2,0
08/09/2018,17:00:00,2852.50,2852.50,2852.50,2852.50,1,0
08/09/2018,17:00:00,2852.25,2852.25,2852.25,2852.25,0,2
08/09/2018,17:00:00,2852.25,2852.25,2852.25,2852.25,0,5
08/09/2018,17:00:00,2852.25,2852.25,2852.25,2852.25,0,1
08/09/2018,17:00:00,2852.50,2852.50,2852.50,2852.50,3,0
08/09/2018,17:00:00,2852.50,2852.50,2852.50,2852.50,1,0
08/09/2018,17:00:00,2852.50,2852.50,2852.50,2852.50,3,0
08/09/2018,17:00:00,2852.75,2852.75,2852.75,2852.75,3,0
08/09/2018,17:00:00,2852.25,2852.25,2852.25,2852.25,0,1
08/09/2018,17:00:00,2852.75,2852.75,2852.75,2852.75,7,0
08/09/2018,17:00:00,2852.75,2852.75,2852.75,2852.75,4,0
08/09/2018,17:00:00,2852.75,2852.75,2852.75,2852.75,1,0
08/09/2018,17:00:00,2852.75,2852.75,2852.75,2852.75,12,0
08/09/2018,17:00:00,2852.75,2852.75,2852.75,2852.75,2,0
08/09/2018,17:00:00,2852.75,2852.75,2852.75,2852.75,2,0
08/09/2018,17:00:00,2852.75,2852.75,2852.75,2852.75,1,0

Answer 1

尽管这也许不是最好的方法，但我建议使用pandas库Pandas将这样的文本文件读入数据框。（如果要对此数据执行实际的数据分析操作，则像Pandas之类的东西最适合您，而不是简单的文件io读取/拆分。）创建数据框后（请参阅Pandas的文档），请使用pandas放置命令Pandas drop。

对于您的情况，应该是这样的：

#import pandas as pd
#Following creation of Pandas dataframe df
df = df.drop(["Open", "High", "Low"], axis = 1)

请确保在进行更改后重新分配数据框。我将把它作为练习供您参考文档并实际导入数据框。翻看一下熊猫，你应该弄清楚。

Answer 2

在读取诸如此类的文件时，通常使用像Pandas这样的库。

import pandas as pd
df = pd.read_csv("sample_text_file.txt")
df_new = df[['Date', 'Time', 'Close', 'Up', 'Down']]
df_new.to_csv('sample_text_file_new.txt', header=True, index=None)

删除文本文件python中的列

2 个答案: