I have a tree structure, which I am using QlikView for analyzing (probably not the best choice, but no other is available right now). Now I have to calculate a measure (criticality) of each node. A simple post-order traversal of the tree would be sufficient.
However, I have no clue on how to implement this either as an expression, preferebly as table in the script.
Here is some sample data, which is distributed in two tables:
Line StationA StationB
A-B A B
B-C B C
B-D B D
C-E C E
D-G D G
E-F E F
As Output I would like to have a table in this manner:
A-B 50 (20+18+12)
B-C 18 (10+8)
B-D 12 ...
I don't want to calculate them by hand, because the number of records is much larger. If there is not "easy" or "efficient" way to do this in QlikView I woud probably do it in R.