Python更改数据类别用到astype()函数报错

Question

刚开始学Python，学到Categorical这里出了点问题，查了一圈貌似是因为Python版本不一样才会报错，但是并没有找到合适的解决方法，代码如下，请大神帮忙看看

Cut=pd.Series(["Fair","Good","Very Good","Premium","Ideal"])
Cut_Facor2=Cut.astype("category",categories=["Good","Fair","Very Good","Ideal","Premium"],ordered=True)

 

 

Answer 1

根据pandas官方文档，用自定义的分类顺序进行类型转换时，用如下代码：

Cut_Facor2 = pd.api.types.CategoricalDtype(

    categories=["Good", "Fair", "Very Good", "Ideal", "Premium"], ordered=True)

print(Cut.astype(Cut_Facor2))