@author jackzhenguo @desc @date 2019/5/3
83 10个高斯分布的坐标点
random模块中的gauss(u,sigma)生成均值为u, 标准差为sigma的满足高斯分布的值，如下生成10个二维坐标点，样本误差(y-2*x-1)满足均值为0，标准差为1的高斯分布：
from random import gauss x = range(10) y = [2*xi+1+gauss(0,1) for xi in x] points = list(zip(x,y)) ### 10个二维点： [(0, -0.86789025305992), (1, 4.738439437453464), (2, 5.190278040856102), (3, 8.05270893133576), (4, 9.979481700775292), (5, 11.960781766216384), (6, 13.025427054303737), (7, 14.02384035204836), (8, 15.33755823101161), (9, 17.565074449028497)]