Hi all -
This seems like it should be easy, but for some reason i have thought
myself into a box on this and now am stuck.
I have a data set of rows/ columns that has some hierarchical data in
it:
COLUMN A B C
A1 B1 C1
A1 B1 C2
A1 B2 C3
A1 B2 C4
A2 B3 C5
A2 B3 C6
A2 B4 C7
A2 B4 C8
and i want to convert this to a nested map structure:
[
{:data A1
:children [{:data B1 :children [{:data C1} {:data C2}]]}
{:data B2 :children [{:data C3} {:data C4}]]}
{:data A2
:children [{:data B3 :children [{:data C5} {:data C6}]]}
{:data B4 :children [{:data C7} {:data C8}]]} ]
I have tried various methods and have frustrated myself to no end.
Any help on this would be most greatly appreciated.
3 additional notes:
1. It would be really awesome if i could somehow specify the
hierarchical structure so that I can reuse this (as i will have to)
2. I will be using this on some fairly large data sets (the largest is
maybe 50K records).
3. I think that the largest number of nodes in the tree will be 3,
but this *could* change in the future.
As always, any help is most appreciated.
Thanks
Base
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