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<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd"><html xmlns="http://www.w3.org/1999/xhtml"><head><title>R: Automobile Data from 'Consumer Reports' 1990</title> <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> <link rel="stylesheet" type="text/css" href="R.css" /> </head><body> <table width="100%" summary="page for car.test.frame {rpart}"><tr><td>car.test.frame {rpart}</td><td style="text-align: right;">R Documentation</td></tr></table> <h2>Automobile Data from 'Consumer Reports' 1990</h2> <h3>Description</h3> <p>The <code>car.test.frame</code> data frame has 60 rows and 8 columns, giving data on makes of cars taken from the April, 1990 issue of <em>Consumer Reports</em>. This is part of a larger dataset, some columns of which are given in <code><a href="cu.summary.html">cu.summary</a></code>. </p> <h3>Usage</h3> <pre> car.test.frame </pre> <h3>Format</h3> <p>This data frame contains the following columns: </p> <dl> <dt><code>Price</code></dt><dd> <p>a numeric vector giving the list price in US dollars of a standard model </p> </dd> <dt><code>Country</code></dt><dd> <p>of origin, a factor with levels <span class="samp">France</span>, <span class="samp">Germany</span>, <span class="samp">Japan</span> , <span class="samp">Japan/USA</span>, <span class="samp">Korea</span>, <span class="samp">Mexico</span>, <span class="samp">Sweden</span> and <span class="samp">USA</span> </p> </dd> <dt><code>Reliability</code></dt><dd> <p>a numeric vector coded <code>1</code> to <code>5</code>. </p> </dd> <dt><code>Mileage</code></dt><dd> <p>fuel consumption miles per US gallon, as tested. </p> </dd> <dt><code>Type</code></dt><dd> <p>a factor with levels <code>Compact</code> <code>Large</code> <code>Medium</code> <code>Small</code> <code>Sporty</code> <code>Van</code> </p> </dd> <dt><code>Weight</code></dt><dd> <p>kerb weight in pounds. </p> </dd> <dt><code>Disp.</code></dt><dd> <p>the engine capacity (displacement) in litres. </p> </dd> <dt><code>HP</code></dt><dd> <p>the net horsepower of the vehicle. </p> </dd> </dl> <h3>Source</h3> <p><em>Consumer Reports</em>, April, 1990, pp. 235–288 quoted in </p> <p>John M. Chambers and Trevor J. Hastie eds. (1992) <em>Statistical Models in S</em>, Wadsworth and Brooks/Cole, Pacific Grove, CA, pp. 46–47. </p> <h3>See Also</h3> <p><code><a href="car90.html">car90</a></code>, <code><a href="cu.summary.html">cu.summary</a></code> </p> <h3>Examples</h3> <pre> z.auto <- rpart(Mileage ~ Weight, car.test.frame) summary(z.auto) </pre> <hr /><div style="text-align: center;">[Package <em>rpart</em> version 4.1-15 <a href="00Index.html">Index</a>]</div> </body></html>