Python 如何提取单个字符串并删除其他字符串,类似于DataFrame
我将类别名称与技能名称相结合,按类别名称对其进行排序。现在我有了如下列的表格Python 如何提取单个字符串并删除其他字符串,类似于DataFrame,python,pandas,Python,Pandas,我将类别名称与技能名称相结合,按类别名称对其进行排序。现在我有了如下列的表格 (Category1) Skill 1 (Category1) Skill 2 (Category1) Skill 3 (Category1) Skill 4 (Category1) Skill 5 (Category1) Skill 6 (Category2) Skill 7 (Category2) Skill 8 (Category2) Skill 9 (Category2) Skill 10 (Category2
(Category1) Skill 1
(Category1) Skill 2
(Category1) Skill 3
(Category1) Skill 4
(Category1) Skill 5
(Category1) Skill 6
(Category2) Skill 7
(Category2) Skill 8
(Category2) Skill 9
(Category2) Skill 10
(Category2) Skill 11
(Category2) Skill 12
我想每个第一个技能只留下一个类别标题,然后删除另一个,类似于这个表
(Category1) Skill 1
Skill 2
Skill 3
Skill 4
Skill 5
Skill 6
(Category2) Skill 7
Skill 8
Skill 9
Skill 10
Skill 11
Skill 12
有什么想法吗?谢谢您可以拆分字符串并检索最后一部分Skill x,还可以检查Categoryx的复制位置,并使用结果替换为拆分的部分:
import numpy as np
m = df.col1.str.split(r'\) ', expand=True)
df['col1'] = np.where(m.duplicated(subset=0), m[1], df.col1)
col1
0 (Category1) Skill 1
1 Skill 2
2 Skill 3
3 Skill 4
4 Skill 5
5 Skill 6
6 (Category2) Skill 7
7 Skill 8
8 Skill 9
9 Skill 10
10 Skill 11
11 Skill 12
输入数据-
col1
0 (Category1) Skill 1
1 (Category1) Skill 2
2 (Category1) Skill 3
3 (Category1) Skill 4
4 (Category1) Skill 5
5 (Category1) Skill 6
6 (Category2) Skill 7
7 (Category2) Skill 8
8 (Category2) Skill 9
9 (Category2) Skill 10
10 (Category2) Skill 11
11 (Category2) Skill 12
假设您的dataframedf列名为“A”:
df2 = df.A.str.split(expand=True)
df2[0]=df2[0].mask(df2[0].eq(df2[0].shift())).fillna('')]
df.A = df2.apply(lambda x: ' '.join(x), axis=1)
这是否回答了您的问题@psowa?别忘了你可以投票并接受答案,看到了吗