calculating ratio or percentage with respect to total sum of num list-CodePudding

I'm trying to get the average of values from the num list

let's say I have Input

list1 = [0, 2, 2, 0 ]
list2 = [5, 10, 5, 0]

The output should be :

list1_output = [0, 50, 50, 0 ]
list2_output = [25, 50, 25, 0]

The purpose is to represent the input as percentage in the Chart. In my case, len of the list will always be going to be 4, and the sum of input can increase from 100 but the sum of output should never be more than 100.

Can anybody give me any idea how I can approach this using python? Sudo code also will be helpful.

CodePudding user response：

You can do that with a list comprehension:

sum1 = sum(list1)
[i/sum1*100 for i in list1]

Output:

[0.0, 50.0, 50.0, 0.0]

CodePudding user response：

You can compute the sum of all elements and divide each element by the sum.

list1 = [0, 2, 2, 0 ]
list2 = [5, 10, 5, 0] 

def prcnt(lst):
    sm = sum(lst)
    return [int((l/sm)*100) for l in lst]

print(prcnt(list1))
print(prcnt(list2))

[0, 50, 50, 0]
[25, 50, 25, 0]