Fuel economy {ggplot2} | R Documentation |
Fuel economy data from 1999 and 2008 for 38 popular models of car
Description
This dataset contains a subset of the fuel economy data that the EPA makes available on http://fueleconomy.gov. It contains only models which had a new release every year between 1999 and 2008 - this was used as a proxy for the popularity of the car.
begin{itemize}
manufacturer.
model.
displ. engine displacement, in litres
year.
cyl. number of cylinders
trans. type of transmission
drv. f = front-wheel drive, r = rear wheel drive, 4 = 4wd
cty. city miles per gallon
hwy. highway miles per gallon
fl.
class.
end{itemize}
Usage
data(mpg)
Format
A data frame with 234 rows and 11 variables
[Package
ggplot2 version 0.8.2
Index]