I am trying to create a pie chart/ some visual representation of data to show a combination of attributes. I have zipcodes of businesses and the type of businesses in a single attribute table. I would like to show the number of a certain type of business based on the zipcodes. So, if I have 2 businesses with a SIC code 3, and 5 businesses with a SIC code 7, all in one zipcode area, I want the map to show a chart/ graph of the 2 businesses and 5 businesses.
I have tried to create a pie chart based on this information but, I need to have 2 comparable attributes to do this, which is not what I have.