I am fairly new to ArcGIS and GIS operations.
I am trying to use field calculator to summarize a range of values having different FID_XXXX. For example
I have a geo table with the following FID_XXXX with their corresponding GRIDCODE.
Now I need to populate a new field ( for e.g AREA_OVERLAP) I added after the FID columns :
I was wondering if someone can help me with a .cal expression to summarize or other operations for a batch of values tied to a certain row. I am somewhat familiar with Python but not accustomed to the ArcGIS environment.