I have two DataFrames, each containing customer account information (e.g. name, address, sales, latitude and longitude). Both DataFrames have the latitude and longitude of the account. I'd like to match the accounts in the two DataFrames based on the latitude and longitudes by making the assumption that if the latitude and longitude both math at 4 decimal places then the accounts must also match. The output would be a new series (e.g. "Matched") in one of the two DataFrames that is "1" if there is a match or "0" if there isn't a match.
How can I do this using Pandas?