截断pandas列中的所有值

Question

我试图用数字除后截断pandas中的列值。这是我尝试过的两种方法：

df['new'] = int('%.0f'%(df['old']/12))

df['new'] = int(df['old']/12)

每次出现输入错误：

cannot convert the series to <class 'float'>
cannot convert the series to <class 'int'>

如何在避免这些错误的同时解决此问题？

Answer 1

代码需要将除法生成的Series转换为int。

df['new'] = (df['old'] / 12).astype(int)