In axelbudde/fars: Analysis of FARS Data

library(fars)
library(dplyr)
library(maps)

Purpose

This vignette provides an introduction to the fars package of functions for the analysis of data from the Fatality Analysis Reporting System (FARS).

Installation

To install the fars package from GitHub:

install.packages("devtools")
devtools::install_github("axelbudde/fars")

Functions

The fars package offers three functions:

• fars_read()
• fars_summarize_years()
• fars_map_state()

Examples

Examples are provided for each function, using FARS data from the years 2013 to 2015. The corresponding data files can be found in the \extdata folder.

Reading FARS data

With fars_read() a file path can be defined. The function read the corresponding data file and returns a tibble.

filename <- system.file("extdata/accident_2014.csv.bz2", package = "fars")
fars_read(filename)

Summarizing data

With fars_summarize_years()summarizes the number of accidents by year and month by means of a pivot table. The function accepts a year or a range of years as arguments (integer).

setwd(system.file("extdata", package = "fars"))
fars_summarize_years(2013:2015)

Plotting accident locations

The function fars_map_state() plots accident locations in a certain state and year, using state index and year as arguments.

setwd(system.file("extdata", package = "fars"))
fars_map_state(33, 2015)

axelbudde/fars documentation built on May 5, 2019, 3:48 p.m.