根据另一列删除列中的重复单词

Question

我有如下熊猫数据框：

First Column	Second Column
Dog	Dog is good
Big Cat	Big cat is here
Fat rat	Fat rat is there
Pink tree	Pink tree means love

我想根据第一列删除第二列中的重复单词。我想要的输出是：

First Column	Second Column
Dog	is good
Big Cat	is here
Fat rat	is there
Pink tree	means love

我怎样才能实现它？

我已经环顾四周，但找不到适合我的解决方案。

谢谢！

Answer 1

尝试将apply 与axis=1 一起使用：

df['Second Column'] = df.apply(lambda x: x['Second Column'].lower().replace(x['First Column'].lower(), ''), axis=1)

---

>>> df
  First Column Second Column
0          Dog       is good
1      Big Cat       is here
2      Fat rat      is there
3    Pink tree    means love
>>>