關於平均值、最大值和最小值的問題 function python

Question

import statistics as stat
from statistics import mean
from random import seed, choice
from math import hypot
import random
from turtle import *
import statistics


seed(20190101)

def random_walk(n):
    x = 0
    y = 0
    for i in range(n):
        step = random.choice(["N","S","E","W"])
        if step == 'N':
            y = y + 1
        elif step == "S":
            y = y - 1
        elif step == "E":
            x = x + 1
        else:
            x = x - 1
    return (x,y)

for i in range(100):
    walk = random_walk(50)
    y = abs(walk[0]) + abs(walk[1])
    x = statistics.mean(y)

print(x)

請忽略未使用的模塊

所以我試圖從 function random_walk 中獲取數字的平均值，但我遇到了幾個問題。

首先，我應該在 0,0 網格上啟動程序。 我試圖從提供的種子中找到 100 個步驟和 50 個不同 styles 的試驗平均值。 但它不能正常工作，我不知道為什么..

Answer 1

您正在計算循環內從random_walk()返回的每個值的mean ，覆蓋前一個值。 將循環更改為：

all_steps = []
for i in range(100):
    walk = random_walk(50)
    all_steps.append(abs(walk[0]) + abs(walk[1]))
steps_mean = statistics.mean(all_steps) #Only after the loop
print(steps_mean)