mpg数据集内容

mpg {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.

Usage

mpg
Format

A data frame with 234 rows and 11 variables

manufacturer
model
model name

displ
engine displacement, in litres

year
year of manufacture

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
fuel type

class
"type" of car

翻译

mpg {ggplot2} R文档
1999年和2008年的燃油经济性数据为38种流行车型

描述

该数据集包含EPA在http://fueleconomy.gov上提供的燃料经济性数据的子集。 它仅包含1999年至2008年间每年都有新版本的型号 - 这被用作汽车普及的代理。

用法

MPG
格式

一个包含234行和11个变量的数据框
manufacturer
生产厂家
model
类型
model name
型号名称

displ
发动机排量，升。升

year
生产年份

cyl
气缸数量

trans
传输类型

drv 驱动类型
f =前轮驱动，r =后轮驱动，4 = 4wd

cty
每加仑城市里程

hwy
每加仑高速公路英里

fl
汽油种类

class
类型
"type" of car
汽车的品牌