Grasshopper

algorithmic modeling for Rhino

Adding numbers in a list according to another list

Hello everybody,

I'm looking for a way to add numbers in a list according to another list.

I have two lists like the attached file, and I want to do addition with numbers in the list on right (the value list) corresponding to the list on left (the ID list).

Which means something like

S-0: 4.0+1.0=5.0

S-1: 6.0+6.0=12.0

S-3: 7.0+4.0=11.0

            .

            .

            .

S-5: 8.0+5.0=13.0

and I don't want to add numbers with ID "0"

Any help would be appreciated.

Thanks.

Views: 737

Attachments:

Replies to This Discussion

Permalink Reply by Hyungsoo Kim on October 5, 2016 at 12:11am

Hi.

What's the purpose of "partition List"?

Anyway, Check attached definition. Best.

Attachments:
Permalink Reply by Katie Jurugi on October 5, 2016 at 5:23am

thanks alot Hyungsoo!

im working on kind of confidential project and I couldnt upload original gh file.

so i just wanted to reproduce only part of the gh definition that i had problem with and the structure of lists from the original file had branches.. thats all haha

but anyways thanks again!

RSS

About

Scott Davidson created this Ning Network.

Translate

Search

Photos

  • Add Photos
  • View All

Videos

  • Add Videos
  • View All

© 2025   Created by Scott Davidson.   Powered by

Badges  |  Report an Issue  |  Terms of Service