Calculating Volume By Filtered Items


I’m trying to group elements that have the same material name and then calculate the total volume of each group and then export to excel.

I’ve managed to create a list that has each elements name and volume in a branch but i’m unsure how to actually go about grouping them together. I suspect this might be quite easy but pretty new to dynamo (come from a grasshopper background) so any advice / suggestions appreciated.



For anyone looking for a similar issue, ended up sorting it out by creating by the below solution :


doubt it’s the most elegant solution somehow but it works…