与以下问题类似: Create random numbers with left skewed probability distribution
通过陈述最大值和方差,我想从一些给定范围中采样整数。
例如,对于范围 - {0,1,...,1000}(又名range(1001)
),最大值为100,因此采样数最有可能来自[90-110]的范围,不太可能是数字将被采样的是[80-89]和[111-120]等。
以下代码将执行此操作:
import scipy.stats as ss
import numpy as np
import matplotlib.pyplot as plt
center = 100
n = 1001
std = 20
x = np.arange(0, n)
prob = ss.norm.pdf(x,loc=center, scale = std )
prob = prob / prob.sum() #normalize the probabilities so their sum is 1
nums = np.random.choice(x, 20, p=prob)
nums