幾何平均

同義語：geometric mean

$ (x_1 x_2 \cdots x_N)^{1/N} = \left(\prod_{k=1}^{N} x_k \right)^{1/N}

code:p1.py

import numpy as np

from scipy.stats.mstats import gmean

data = np.arange(1, 5)

print(gmean(data))