如何在Python中执行Friedman测试和post-hoc测试？

import pandas as pd
from scipy.stats import friedmanchisquare
from statsmodels.stats.multicomp import pairwise_tukeyhsd

df = pd.DataFrame({
    'Group1': [1, 2, 3, 4, 5],
    'Group2': [2, 3, 4, 5, 6],
    'Group3': [3, 4, 5, 6, 7]
})

statistic, p_value = friedmanchisquare(df['Group1'], df['Group2'], df['Group3'])

data = pd.melt(df.reset_index(), id_vars=['index'], value_vars=['Group1', 'Group2', 'Group3'])
data.columns = ['index', 'group', 'value']

posthoc = pairwise_tukeyhsd(data['value'], data['group'])

posthoc.plot_simultaneous()