I have 2 data-trees and would like to add the corresponding items together and make a new data-tree. 2 lists are of same length and have around 8000 data. I would like to
- remove the first 8 items in the data tree before doing the addition
- adding the items of two data-trees accordingly, i.e. add item 1 of tree 1 to item 1 of tree 2
May I ask if there is any way to do this?
Thanks a lot in advance.