如何在pos_标记中与Python和Pandas一起使用lambda

如何将pos_标记中的lambda x与Python和Pandas一起使用

例如，我有：

col1    Col2
Aaa1    Hello Aaa1 how are you?
aaa2    Hello my brother aaa2

我只想对col1中的单词使用pos_标记

输出：

Hello NNP how are you?
Hello my brother NN

我使用

data.apply（lambda x:pos_标记（x['col2'，x['col1'））

但它不起作用。

这是一种方法

演示：

import pandas as pd
from nltk import pos_tag
df = pd.DataFrame({"col1": ["Aaa1", "aaa2"], "col2" :["Hello Aaa1 how are you?", "Hello my brother aaa2"]})
df["col2"] = df.apply(lambda x: x["col2"].replace(x["col1"], pos_tag([x["col2"], x["col1"]])[1][1]), axis=1)
print(df)

   col1                    col2
0  Aaa1  Hello NNP how are you?
1  aaa2     Hello my brother NN

输出：

import pandas as pd
from nltk import pos_tag
df = pd.DataFrame({"col1": ["Aaa1", "aaa2"], "col2" :["Hello Aaa1 how are you?", "Hello my brother aaa2"]})
df["col2"] = df.apply(lambda x: x["col2"].replace(x["col1"], pos_tag([x["col2"], x["col1"]])[1][1]), axis=1)
print(df)

   col1                    col2
0  Aaa1  Hello NNP how are you?
1  aaa2     Hello my brother NN

---

谢谢，但您知道如何忽略案例？以及如何在csv文件的每一行中使用它？它提供输出：col1 col2 0（Aaa1，NN）你好Aaa1你好吗？@erocoar您知道怎么做吗？@jurek。更新的代码片段