Python示例：计算数组平均值

Python 示例

写一个 Python示例来计算一个数组或 Numpy 元素数组的平均值。Python Numpy 模块有求和和求平均值的方法来求数组项的求和和求平均值。

import numpy as np

arr = np.array([10, 20, 40, 60, 80, 100])

total = arr.sum()
avg = np.average(arr)

print('\nThe Sum Of Array Elements     = ', total)
print('\nThe Average Of Array Elements = ', avg)

这个 python 程序使用 for 循环来迭代 Numpy Array 项，并计算所有元素的总和和平均值。

import numpy as np

arr = np.array([14, 25, 35, 67, 89, 11, 99])
total = 0

for i in range(len(arr)):
    total = total + arr[i]

avg = total / len(arr)

print('\nThe Sum Of Array Elements     = ', total)
print('\nThe Average Of Array Elements = ', avg)

The Sum Of Array Elements     =  340

The Average Of Array Elements =  48.57142857142857

使用 while 循环计算数组平均值的 Python示例

import numpy as np

arr = np.random.randint(10, 150, size = 11)

print('The Random Array Genegrated')
print(arr)

total = 0
i = 0

while i < len(arr):
    total = total + arr[i]
    i = i + 1

avg = total / len(arr)

print('\nThe Sum Of Array Elements     = ', total)
print('\nThe Average Of Array Elements = ', avg)

The Random Array Genegrated
[123  91 119 131  45 121  48  53  44  60  82]

The Sum Of Array Elements     =  917

The Average Of Array Elements =  83.36363636363636

这个 Python 示例允许输入数组元素，并找到所有数组项的总和和平均值。

import numpy as np

arrlist = []
Number = int(input("Total Array Elements to enter = "))

for i in range(1, Number + 1):
    value = int(input("Please enter the %d Array Value = "  %i))
    arrlist.append(value)

arr = np.array(arrlist)

total = 0

for i in range(len(arr)):
    total = total + arr[i]

avg = total / len(arr)

print('\nThe Sum Of Array Elements     = ', total)
print('\nThe Average Of Array Elements = ', avg)

Total Array Elements to enter = 7
Please enter the 1 Array Value = 22
Please enter the 2 Array Value = 44
Please enter the 3 Array Value = 66
Please enter the 4 Array Value = 88
Please enter the 5 Array Value = 99
Please enter the 6 Array Value = 122
Please enter the 7 Array Value = 154

The Sum Of Array Elements     =  595

The Average Of Array Elements =  85.0