Draws a map of where the incidents of a given year occurred, based on the data of longitude and latitude present in the FARS data. FARS is US National Highway Traffic Safety Administration's Fatality Analysis Reporting System, which is a nationwide census providing the American public yearly data regarding fatal injuries suffered in motor vehicle traffic crashes.
A numeric value with the state number to analyse. Must be present in FARS data
A numeric representing the year in 4 digits format YYYY. Must be present in FARS data
NULL. The function plots a map with points marking accidents
the function stops if state.num is not present in FARS data.
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## Not run: fars_map_state(1,2013) ## End(Not run)
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