计算百分位数

def solve():
    from sklearn.datasets import load_iris
    import numpy as np
    iris = load_iris()
    sepal_length = iris.data[:, 0]
    p25 = np.percentile(sepal_length, 25)
    p50 = np.percentile(sepal_length, 50)
    p75 = np.percentile(sepal_length, 75)
    iqr = p75 - p25
    print(f"第25百分位数(Q1): {p25:.4f}")
    print(f"第50百分位数(Q2/中位数): {p50:.4f}")
    print(f"第75百分位数(Q3): {p75:.4f}")
    print(f"四分位距(IQR): {iqr:.4f}")