Cull edge elements on a data tree

Hello guys!

I think my question is simple enough but for some reason I cannot find any solution. I have a data tree of points and I want to cull the edge elements. More specific the first and the last row and column. How can I achieve this?

Thank you in advance! (11.6 KB)


have a look here

Hello Baris!

Hope you are fine! Thank you very much!