如何在 python 中的 dataframe 中将列平均值舍入为 integer

Question

I am trying to round off the mean value of the column "Age" to integer with the following code,

df['Age'].mean().round()

but I get this error,

'float' object has no attribute 'round'.

Answer 1

Something like this:

df['Age'].mean().round(0).astype(int)

Answer 2

Because scalar is returned from df['Age'].mean() , use round method:

df = pd.DataFrame({'Age':[10, 20, 34]})

print (df['Age'].mean())
21.333333333333332

print (round(df['Age'].mean()))
21

print (round(df['Age'].mean(), 3))
21.333

Answer 3

I found this to work nicely. Should bypass the error and give expected output all in one line of code:

int(round(df['column'].mean(),0))