Algorithm to Choosing 2 or 3 values out of 3 values after calculating how close they are

Question

I want to find a specific algorithm to choose either 2 or 3 out of 3 given values. Like if I have a set of values 10,11,12 all three are close enough so I will calculate the mean of the value and return the mean. For another example if the values are 6,10,12. then I will choose 10 and 12 and calculate the mean and return the mean. Though these value can not necessarily be of of this range , they can go in thousands as well . But there will only be three number of values . I hope I am clear enough. I am not sure how to proceed over this and I need some help . Thank you

I have to set the the threshold , It will be in between 10-20. @GrzegorzSkibinski — Utkarsh Ghadge, Jun 30 '20 at 13:18

score 0 · Accepted Answer · answered Jun 30 '20 at 13:22

Simply calculated all 4 possible selects (3 possibilities for 2 values, 1 for all three), calculate the means, check which one 'like' the most and return it.

So the only problem is to define 'close enough' to decide which of the 4 means is the one you want to return.

score 0 · Answer 2 · answered Jun 30 '20 at 14:17

python version:

def algo(a:int, b:int, c:int, threshold:int):
        n=[0,0,0]
        s=0
        if(abs(a-b)<=threshold):
            s+=(1-n[0])*a+(1-n[1])*b
            n[0]=1
            n[1]=1
        if(abs(a-c)<=threshold):
            s+=(1-n[0])*a+(1-n[2])*c
            n[0]=1
            n[2]=1
        if(abs(c-b)<=threshold):
            s+=(1-n[1])*b+(1-n[2])*c
            n[1]=1
            n[2]=1
        return s/sum(n)

Algorithm to Choosing 2 or 3 values out of 3 values after calculating how close they are

2 Answers2