在python数据帧上应用lambda

我有一个类似python pandas的数据框架

>>> df
  classification like 
0         flower    1 
1         flower    0 
2         flower    0 
3      adventure    1 
4      adventure    1 

我想创建一个输出数据帧

>>> df
  classification like  liked
0         flower    1  True
1         flower    0  False
2         flower    0  False
3      adventure    1  True
4      adventure    1  True

我将在输入数据帧上“应用”python lambda函数,如下所示:

>>> df['like'].apply(lambda x: x == 1)

但是我在“喜欢”栏下得到了所有的“错误”

>>> df
  classification like  liked
0         flower    1  False
1         flower    0  False
2         flower    0  False
3      adventure    1  False
4      adventure    1  False

任何快速的建议都会有帮助。

>>> df['like'].astype(int)
0    1
1    0
2    0
3    1
4    1
Name: like, dtype: int32

@耶斯拉利

>>> df['liked'] = df['like'].astype(bool)
>>> df
  classification like  liked
0         flower    1   True
1         flower    0   True
2         flower    0   True
3      adventure    1   True
4      adventure    1   True

@Jezrael:数据类型

>>> df.dtypes
classification    object
like              object
liked               bool
dtype: object