Unique elements in nested sublist

[Daniel_Heijting]

hello everyone,

I have a question on creating a list of unique elements that are Grouped by a text parameter value and than by Mark value, this creates the following hierarchy:

0]
0]
0] (elements from wich I want the unique element

together with a count list I can export to excel wich is the goal.

in the image below my dynamo example:

[T_Pover]

Have you tried the List.FirstItem in combination with a List.Map node?

[Daniel_Heijting]

he Taco,

doesn’t work, it Flattens the list also with long and cross lacing. same problem I encounter the whole time because of the two times sublist.

[T_Pover]

If a single list.map fails, you can always try a double