This dataset contains a subset of the fuel economy data that the EPA makes
available on <a href="https://fueleconomy.gov/">https://fueleconomy.gov/</a>. 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.

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based on "The Grammar of Graphics". You provide the data, tell 'ggplot2'
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and it takes care of the details.

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RStudio 

mpg function

A data frame with 234 rows and 11 variables:<dl class="dl-horizontal">
<dt>manufacturer</dt><dd>manufacturer name</dd>
<dt>model</dt><dd>model name</dd>
<dt>displ</dt><dd>engine displacement, in litres</dd>
<dt>year</dt><dd>year of manufacture</dd>
<dt>cyl</dt><dd>number of cylinders</dd>
<dt>trans</dt><dd>type of transmission</dd>
<dt>drv</dt><dd>the type of drive train, where f = front-wheel drive, r = rear wheel drive, 4 = 4wd</dd>
<dt>cty</dt><dd>city miles per gallon</dd>
<dt>hwy</dt><dd>highway miles per gallon</dd>
<dt>fl</dt><dd>fuel type</dd>
<dt>class</dt><dd>"type" of car</dd>
</dl>

Format

This dataset contains a subset of the fuel economy data that the EPA makes
available on <a href='https://fueleconomy.gov/'>https://fueleconomy.gov/</a>. 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.

Fuel economy data from 1999 to 2008 for 38 popular models of cars — mpg

A data frame with 234 rows and 11 variables:<dl class='dl-horizontal'>
<dt>manufacturer</dt><dd>manufacturer name</dd>
<dt>model</dt><dd>model name</dd>
<dt>displ</dt><dd>engine displacement, in litres</dd>
<dt>year</dt><dd>year of manufacture</dd>
<dt>cyl</dt><dd>number of cylinders</dd>
<dt>trans</dt><dd>type of transmission</dd>
<dt>drv</dt><dd>the type of drive train, where f = front-wheel drive, r = rear wheel drive, 4 = 4wd</dd>
<dt>cty</dt><dd>city miles per gallon</dd>
<dt>hwy</dt><dd>highway miles per gallon</dd>
<dt>fl</dt><dd>fuel type</dd>
<dt>class</dt><dd>"type" of car</dd>
</dl>

mpg: Fuel economy data from 1999 to 2008 for 38 popular models of cars

Description

Usage

Arguments

Format