I have 2 polygon layers:
- one is a vector grid with attribute values for each "polygon cell"
- the other including administrative boundaries
I would like to calculate the mean value of all attribute values within each polygon of the administrative boundaries.
I know that ArcGIS offers the Zonal Statistics tool, but I would have to convert everything to raster. I know of the GME extension which includes a polygon in polygon analysis. But I was wondering if there is any built-in function within ArcMap?