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Python Pandas – 从 DataFrame 列中的字符串中删除数字

2023-06-03 00:34:02 513

要从字符串中删除数字，我们可以使用replace()方法并简单地替换。让我们首先导入require库-

import pandas as pd

使用学生记录创建DataFrame。Id列有带数字的字符串-

dataFrame = pd.DataFrame(
   {
      "Id": ['S01','S02','S03','S04','S05','S06','S07'],"Name": ['Jack', 'Robin', 'Ted', 'Robin', 'Scarlett', 'Kat', 'Ted'],"Result": ['Pass', 'Fail', 'Pass', 'Fail', 'Pass', 'Pass', 'Pass']
   }
)

从特定列的字符串中删除数字，即此处的“Id”-

dataFrame['Id'] = dataFrame['Id'].str.replace('\d+', '')

示例

以下是代码-

import pandas as pd

#使用学生记录创建DataFrame
dataFrame = pd.DataFrame(
   {
      "Id": ['S01','S02','S03','S04','S05','S06','S07'],"Name": ['Jack', 'Robin', 'Ted', 'Robin', 'Scarlett', 'Kat', 'Ted'],"Result": ['Pass', 'Fail', 'Pass', 'Fail', 'Pass', 'Pass', 'Pass']
   }
)

print"DataFrame ...\n",dataFrame

#从特定列的字符串中删除数字
dataFrame['Id'] = dataFrame['Id'].str.replace('\d+', '')

print"\nUpdated DataFrame...\n", dataFrame

输出结果

这将产生以下输出-

DataFrame ...
     Id      Name   Result
0   S01      Jack     Pass
1   S02     Robin     Fail
2   S03       Ted     Pass
3   S04     Robin     Fail
4   S05  Scarlett     Pass
5   S06       Kat     Pass
6   S07       Ted     Pass

Updated DataFrame...
   Id      Name   Result
0   S      Jack     Pass
1   S     Robin     Fail
2   S       Ted     Pass
3   S     Robin     Fail
4   S  Scarlett     Pass
5   S       Kat     Pass
6   S       Ted     Pass

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Python Pandas – 从 DataFrame 列中的字符串中删除数字

示例

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