Vehicle info from the EPA for 2012

Description

Details from the EPA.

epa2012

A data frame with 1129 observations on the following 28 variables.

model_yr: a numeric vector
mfr_name: Manufacturer name.
division: Vehicle division.
carline: Vehicle line.
mfr_code: Manufacturer code.
model_type_index: Model type index.
engine_displacement: Engine displacement.
no_cylinders: Number of cylinders.
transmission_speed: Transmission speed.
city_mpg: City mileage.
hwy_mpg: Highway mileage.
comb_mpg: Combined mileage.
guzzler: Whether the car is considered a "guzzler" or not, a factor with levels N and Y.
air_aspir_method: Air aspiration method.
air_aspir_method_desc: Air aspiration method description.
transmission: Transmission type.
transmission_desc: Transmission type description.
no_gears: Number of gears.
trans_lockup: Whether transmission locks up, a factor with levels N and Y.
trans_creeper_gear: A factor with level N only.
drive_sys: Drive system, a factor with levels.
drive_desc: Drive system description.
fuel_usage: Fuel usage, a factor with levels.
fuel_usage_desc: Fuel usage description.
class: Class of car.
car_truck: Car or truck, a factor with levels car, 1, 2.
release_date: Date of vehicle release.
fuel_cell: Whether the car has a fuel cell or not, a factor with levels N, Y.

Fueleconomy.gov, Shared MPG Estimates: Toyota Prius 2012.