Remark calculer la variance en Python

Si vous avez besoin de calculer variance en Python, alors vous pouvez faire ce qui go well with.

Possibility 1 – Utilisation variance() depuis Statistics module

import statistics

checklist = (12,14,10,6,23,31)
print("Checklist : " + str(checklist))

var = statistics.variance(checklist)
print("Variance: " + str(var))

Possibility 2 – Utilisation var() depuis numpy module

import numpy as np

arr = (12,43,24,17,32)

print("Array : ", arr)
print("Variance: ", np.var(arr))

Possibility 3 – Utilisation sum() et Checklist Comprehensions

checklist = (12,43,24,17,32)
common = sum(checklist) / len(checklist)
var = sum((x-average)**2 for x in checklist) / len(checklist)
print(var)