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python-3.x之属性错误 : 'DataFrame' object has no attribute 'infer_objects'

2025年01月19日16Terrylee

每次我尝试 infer_objects() 方法时,即使遵循官方文档 (link),我也会收到此错误:

AttributeError: 'DataFrame' object has no attribute 'infer_objects' 

代码示例:

import pandas as pd 
df = pd.DataFrame({"A": ["a", 1, 2, 3]}) 
df = df.iloc[1:] 
df = df.infer_objects() 

为什么会出现此错误?

请您参考如下方法:

我可以支持 Jon Clements 的回答和 F. Varlets 问题:更新 pandas works

避免convert_objectsinfer_objects :

手动设置数据类型:

In [21]: df=pd.DataFrame([['a','1'],['b','2']], columns=['x','y']) 
 
In [22]: df.dtypes 
Out[22]:  
x    object 
y    object 
dtype: object 
 
In [23]: for k in {'x':'object','y':'int'}: 
    ...:     df[k]=pd.to_numeric(df[k], errors='ignore') 
    ...:      
 
In [24]: df.dtypes 
Out[24]:  
x    object 
y     int64 
dtype: object 

自动数据类型转换:

In [10]: df=pd.DataFrame([['a','1'],['b','2']], columns=['x','y']) 
 
In [11]: df.dtypes 
Out[11]:  
x    object 
y    object 
dtype: object 
 
In [12]: for k in list(df): 
    ...:    ...:     df[k]=pd.to_numeric(df[k], errors='ignore') 
    ...:     
 
In [13]: df.dtypes 
Out[13]:  
x    object 
y     int64 
dtype: object