In AGrosserHH/Farsdata: Package for FARS data

library(Farsdata)
library(dplyr)
library(maps)

This vignette is a brief overview of the Farsdata package and its functionality. It provides some useful functions for its analysis.

Exported functions

Three functions are exported so that the user can use them

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

Furthermore I desscribe how the functions works. I am using the FARS data files 2013-2014 which can be found in the directory Farsdata.

FARS Read function

The function fars_read() reads a data file from a path (as argument). It returns a loaded data set.

filename <- system.file("extdata/accident_2013.csv.bz2", package = "Farsdata")
fars_read(filename)

FARS Summarize function

The function fars_summarize_years() takes a vector/ list of years as an argument and returns a tables of accidents per month and year.

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

FARS Map state

The function fars_map_state() takes a state and a year as inputs and returns a plot of the state and its accident locations.

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

AGrosserHH/Farsdata documentation built on May 21, 2019, 10:09 a.m.