This is my array a= [5, 25, 50, 100, 250, 500] .
The mean value of a is 155 (i calculated using sum(a)/len(a)) but i have to store 100 in a variable instead of 155.
Is there any easy way to solve this problem.
>Solution :
If we want to go with pure python, I would write a function like this:
from typing import List
numb_list = [1, 4, 10, 20, 55, 102, 77, 89]
def find_closest_to_mean(num_list: List[int])->int:
mean = sum(numb_list)/len(num_list)
distance_list = [abs(mean - num) for num in numb_list]
return num_list[distance_list.index(min(distance_list))]
print(find_closest_to_mean(numb_list))
[Out]
mean = 44.75
closest number = 55
here I create a function called find_closest_to_mean that expects a num_list argument that is a list of integers. It then first calculates the mean of the list, creates a distance_list in which each element corresponds to the distance of the num_list in that position with the mean (as an absolute value). lastly it returns an integer from the num_list that has the least distance to the mean.