In cmoten/fars: Read and Summarize Fatal Accident Data

library(fars)

The functions in this packge are made to read, tidy, and display data from the National Highway Traffic Administration's Fatality Analysis Reporting System (FARS).

Make the appropriate file name

Before reading in the data, you must create the appropriate file name. The function make_filename() accomplishes this. For example, to make the filename for data in the year 2013, you would iput the following code:

make_filename(2013)

Create a data table

After you make the file name, you can now read the csv.bz2 file and create a tibble with the function fars_read(). This function takes two arguments: the name of the file, and the file path. By default, the path of the file is set to the location of sample data that is included in this package for the years 2013, 2014, and 2015.

file_name <- make_filename(2013)
fars_read(file_name)

Read multiple years of data

The fars_read_years() function takes a vector of years as an input and returns a list of tibbles. Each table contains the integer month (1-12) and the corresponding year.

years <- 2013:2015
fars_read_years(years)

Summarize multiple years of data

The fars_summarize_years() functions also takes a vector of years as its sole argument. However, this function will return a row for each month and a count of the number of events per inputted year.

fars_summarize_years(years)

Create a state map of fatal events

To create a map of the locations of fatal events within a state, use the fars_map_state() function. This function takes a registration state code number and year as its arguments. To find a particular registration state code, go to the FARS documentation. The example below will display the fatal accidents for Florida (code #12) in 2015.