用numpy函数可实现快速计算
n [23]: import numpy as np In [24]: data = [1, 2, 3] In [25]: np.mean(data) Out[25]: 2.0 In [26]: np.sum(data) Out[26]: 6 In [27]: np.max(data) Out[27]: 3 In [28]: np.min(data) Out[28]: 1 In [29]: np.std(data) Out[29]: 0.81649658092772603
In [32]: data = np.array([1, 2, 3]) In [33]: data.min() Out[33]: 1 In [34]: data.max() Out[34]: 3 In [35]: data.std() Out[35]: 0.81649658092772603 In [36]: data.mean() Out[36]: 2.0