I have a line shapefile that used for some calculation.
One of the calculation is subtracting values with a same group ID.
The shapefile has a filed called
LineID that consists of 2 lines with
Side 1 and
side 2. Value of
side 1 should subtracted from
Side 2 that have same
LineID and stored in field called
Diff in front of sid 1 or side 2 (doesn’t matter each).
How do I write a script with it with ArcPy in Python?