In ThoDuyNguyen/fars: Package analyzes FARS accident data

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

The package provide functions used for sumarizing data from FARS - Fatality Analysis Reporting System

Install package

Prerequisite

The package required dplyr and maps installed beforehand

install.packages("dplyr")
install.packages("maps")

Install from github

The package is currently not in CRAN but you could download from Github

devtools::install_github("ThoDuyNguyen/fars")

Usage

Load packages

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

Package functions

We will use data from FARS, years 2013-2015, that can be found in the package directory under \extdata folder in the example.

Read FARS data

fars_read read data from a file path provided as an argument. It returns a tibble with loaded data:

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

Summarize number

fars_summarize_years takes a vector or list of years (numeric/integer values) as an argument and returns a pivot table with number of accidents per year and month.

setwd(system.file("extdata", package = "fars"))
fars_summarize_years(2013:2014)

Plot accident locations

fars_map_state takesstate index and year as arguments and returns a plot of the state with accident locations. The state indices need to correspond available indeces from the data set.

setwd(system.file("extdata", package = "fars"))
fars_map_state(45, 2014)

ThoDuyNguyen/fars documentation built on May 20, 2019, 3:34 p.m.