从 Pandas GroupBy function 中提取结果

Question

I am relatively new to Python and started to use Pandas. I've looked at the Pandas documentation but can't see to find what I need although that could be due to being unfamiliar with some of the terminology.

I used the Dataframe GroupBy function and have these results

mean_len = spam.groupby(spam.target).mean()

Function      Mean
   A          1.5
   B          2.6

My question is, what code would generate the result below from the groupby output:

(1.5, 2.6)

thanks a lot

Answer 1

This should convert it to a tuple:

df = pd.DataFrame({
    'Function': ['A', 'B'],
    'Mean': [1.5, 2.5]
})
a = tuple(list(df['Mean']))
print(a)

(1.5, 2.5)

Answer 2

You can extract the series Mean as a numpy array using

means = mean_len.Mean.values

If what you actually want is a list or a tuple, you can additionally do

tuple(means.tolist())