python - 将多个句子标记为 python pandas 中的行

Question

我有一个这样的文本数据框，

id      text
1       Thanks.  I appreciate your help.  I really like this chat service as it is very convenient.  I hope you have a wonderful day! thanks!
2       Got it. Thanks for the help; good nite.

我想拆分那些文本句子并将它们与每个 id 匹配。我的预期输出是，

id      text
1       Thanks.
1       I appreciate your help.
1       I really like this chat service as it is very convenient.
1       I hope you have a wonderful day!
1       thanks!
2       Got it.
2       Thanks for the help;
2       good nite.

有没有nltk函数可以处理这个问题？

Answer 1

第一次 split 然后使用 explode ，如果你没有升级你的 pandas 到 0.25 ，检查 How to unnest (explode) a column in a pandas DataFrame?

df.assign(text=df.text.str.split('[.!;]')).explode('text').loc[lambda x : x.text!='']
Out[181]: 
                                                text  id
0                                             Thanks   1
0                             I appreciate your help   1
0    I really like this chat service as it is ver...   1
0                    I hope you have a wonderful day   1
0                                             thanks   1
1                                             Got it   2
1                                Thanks for the help   2
1                                          good nite   2