随机游走

Python 中级

Hugo Bowne-Anderson

Data Scientist at DataCamp

随机步

随机游走

科学中的称呼

分子运动轨迹
赌徒的资金变化

正反面

headtails.py

import numpy as np
np.random.seed(123)
outcomes = []
for x in range(10) :
    coin = np.random.randint(0, 2)
    if coin == 0 :
        outcomes.append("heads")
    else :
        outcomes.append("tails")

print(outcomes)

['heads', 'tails', 'heads', 'heads', 'heads', 
 'heads', 'heads', 'tails', 'tails', 'heads']

正反面：随机游走

headtailsrw.py

import numpy as np
np.random.seed(123)

tails = [0]

for x in range(10) :
    coin = np.random.randint(0, 2)
    tails.append(tails[x] + coin)

print(tails)

[0, 0, 1, 1, 1, 1, 1, 1, 2, 3, 3]

迈步开始游走

outcomes

['heads', 'tails', 'heads', 'heads', 'heads', 
 'heads', 'heads', 'tails', 'tails', 'heads']

tails

[0, 0, 1, 1, 1, 1, 1, 1, 2, 3, 3]

Passons à la pratique !

Python 中级