R/data-prius_mpg.R

In openintro: Data Sets and Supplemental Functions from 'OpenIntro' Textbooks and Labs

#' User reported fuel efficiency for 2017 Toyota Prius Prime
#'
#' Fueleconomy.gov, the official US government source for fuel economy
#' information, allows users to share gas mileage information on their
#' vehicles. These data come from 19 users sharing gas mileage on their
#' 2017 Toyota Prius Prime. Note that these data are user estimates and
#' since the sources data cannot be verified, the accuracy of these estimates
#' are not guaranteed.
#'
#' @name prius_mpg
#' @docType data
#' @format A data frame with 19 observations on the following 10 variables.
#' \describe{
#'   \item{average_mpg}{Average mileage as estimated by the user.}
#'   \item{state}{US State the user lives in.}
#'   \item{stop_and_go}{Proportion of stop and go driving.}
#'   \item{highway}{Proportion of highway driving.}
#'   \item{last_updated}{Date estimate was last updated.}
#' }
#' @source Fueleconomy.gov,
#' \url{https://www.fueleconomy.gov/mpg/MPG.do?action=mpgData&vehicleID=38531&browser=true&details=on},
#' retrieved 2019-04-14.
#' @keywords datasets
#' @examples
#'
#' library(ggplot2)
#' library(dplyr)
#'
#' ggplot(prius_mpg, aes(x = average_mpg)) +
#'   geom_histogram(binwidth = 25)
"prius_mpg"