在pandas DataFrame中计算每个组的t检验统计量

import pandas as pd
from scipy.stats import ttest_ind

df = pd.DataFrame({'group': ['group1', 'group1', 'group1', 'group2', 'group2', 'group2'],
                   'value': [1, 2, 3, 4, 5, 6]})

grouped = df.groupby('group')

for name, group in grouped:
    t_statistic, p_value = ttest_ind(group['value'], df[df['group'] != name]['value'])
    print(f"Group: {name}")
    print(f"t-statistic: {t_statistic}")
    print(f"p-value: {p_value}")
    print()