Hi guys,
I was wondering if there is any custom node to group a list of revit element according to the values of a parameter.
List of elements:
A
B
C
D
E
F
Parameter value:
1
2
1
3
2
1
result:
0- A
C
F
1- B
E
2- D
THANK YOU
1 Like
yes,
for example you want to group all the doors with same parameter value, in this case “Level”, use the node GroupByFunction
would it help?
3 Likes
That’s exactly what I want thank you
Do we really have to eternally repeat the same things here? 
What is the way to know the value, which sort the list? is there a simple way?
[&] List.SortByKey or [&] List.GroupByKey from Ampersand do that:
DanEDU has also a node called DanEDU.List.Sort&GroupByKey:
But of course, the OOTB List.GroupByKey node could also work:
2 Likes
This video shows how to group elements by unique values