I have this single list of list of lists, (that I got from doing 3 choose 2 combination on a list of lists):
[([1, 0, 1, 1], [1, 0, 1, 10]), ([1, 0, 1, 1], [1, 1, 0, 100]), ([1, 0, 1, 10], [1, 1, 0, 100])]
so its 3 groups, these 3 groups have 2 lists each, and these 2 lists have 4 integers each
I want to add the integers up in these pairs of lists to make one list of sums for each group.
It should look like:
([2,0,2,11], [2,1,1,101], [2,1,1,110])
To show the problem here easily, I simplified the example to "3 groups of 2 lists with 4 integers " but in reality its about "1000 groups of 10 lists of 30 integers".
I tried googling how to do this and got some lambda and zip stuff but I couldn’t get it to work. I tried making a custom loop as well, I mostly got recommended cases of adding list1 to list2 , but i just have one list. I got bunch of errors. I appreciate if anyone could help, thank you.
>Solution :
So here’s a solution using sum and zip:
result = [[sum(row) for row in zip(*pair)] for pair in data]
You can break each call down and add prints to better understand what each part does, I’ll try and explain: