I have a model that iterates through feature classes, does a calculation, and puts out feature classes. I now need to run it on a GDB containing over 15000 fcs, which is time-consuming and cumbersome.
I wonder if anyone can help me alter the model so that, instead of iterating through a GDB, it will iterate through the rows in a single shapefile, do the same calculation, and put out a single shapefile with a new field containing the calculation result (or fill in an existing blank field).
I have attached the toolbox here. The inputs will be changed: they will be a shapefile containing all New York State block groups, and a shapefile containing all New York State tax parcels. The model calculates the percentage of each block group that is residential, based on a field in the tax parcel shapefile called "GOSR_CAT".
I suspect I need to use a different iterator (row selection?) but have no experience doing that. I don't know how to select a row, run the calculation, and fill in a field, all in the same shapefile.