I have a file with US state codes (e.g. MA, NY, VA etc) and I want to create a heat map depending on the number of occurrences of s state in my data file. Currently I am using the extensions posted here: google map extension objects.
What would be the best way to create a create a clickable heat map using the state codes that I have, I can modify the data to add any additional information that might be needed to achieve this result
