fars_map_state: Fatal Incident Plot

In gben1750/fatal-car-analysis-reporting-system: Fatal Car Accident Reporting System (FCARS)

Description

The function graphically displays the locations of fatal accidents recorded in the US National Highway Traffic Safety Administration's Fatal Analysis Reporting System (FARS). The function accepts a state number and year as parameters.

Usage

fars_map_state(state.num, year)

Arguments

state.num	State number
year	A vector (or matrix) used to represent the years of the data files to be imported.

Details

The function uses the following previously described functions in this package; make_filename(), fars_read. The function accepts a state.num argument and state.num argument to plot incidents for a given year. Execution will halt if the state number does not exist and return the message invalid STATE number: " x (where x is the state.num argument). If there are no fatalities in a state the function returns 'no incidents to plot'.

Value

This function returns a plot depicting the location of fatal incidents (where a death occured within 30 days of the crash) recorded during a given year for a state.

Note

The dplyr,map and point packages must also be installed in the R environment but do not have to be attached.

Examples

fars_map_state (1,2013)

## Not run: 
fars_read_years(c(2013,2014))

## End(Not run)

gben1750/fatal-car-analysis-reporting-system documentation built on Dec. 20, 2021, 9:49 a.m.