使用python从dataframe中随机选择子样本

import pandas as pd
import random

df = pd.DataFrame({'A': [1, 2, 3, 4, 5],
                   'B': ['a', 'b', 'c', 'd', 'e'],
                   'C': [True, False, True, False, True]})

sample_size = 2  # 设置子样本的大小
subsample = df.sample(n=sample_size, replace=False)  # 从DataFrame中随机选择子样本

print(subsample)