carAuction {HRW}

Cars purchased at auction

Description

The carAuction data frame has data on several variables concerning cars purchased at automobile auctions by automobile dealerships in the United States of America. The origin of these data is a classification competition titled “Don't Get Kicked!” that ran on the ‘kaggle’ platform (https://www.kaggle.com) during 2011-2012. Many of the variables in this data frame have been derived from those in the original data set from https://www.kaggle.com.

Usage

data(carAuction)

Format

This data frame contains the following columns:

RefId

unique number assigned to each vehicles.

IsBadBuy

indicator that the vehicle purchased at auction by an automobile dealership has serious problems that hinder or prevent it being sold - a "bad buy":
1 = the vehicle is a "bad buy"
0 = the vehicle is a "good buy".
All other indicator variables are defined in this way.

purchIn2010

indicator that vehicle was purchased in 2010.

aucEqAdesa

indicator that the auction provider at which the vehicle was purchased was Adesa.

aucEqManheim

indicator that the auction provider at which the vehicle was purchased was Manheim.

vehYearEq03

indicator that the manufacturer's year of the vehicle is 2003.

vehYearEq04

indicator that the manufacturer's year of the vehicle is 2004.

vehYearEq05

indicator that the manufacturer's year of the vehicle is 2005.

vehYearEq06

indicator that the manufacturer's year of the vehicle is 2006.

vehYearEq07

indicator that the manufacturer's year of the vehicle is 2007.

ageAtSale

age of the vehicle in years when sold.

makeEqChevrolet

indicator that the vehicle's manufacturer is Chevrolet.

makeEqFord

indicator that the vehicle's manufacturer is Ford.

makeEqDodge

indicator that the vehicle's manufacturer is Dodge.

makeEqChrysler

indicator that the vehicle's manufacturer is Chrysler.

trimEqBas

indicator that the trim level of the vehicle is 'Bas'.

trimEqLS

indicator that the trim level of the vehicle is 'LS'.

trimEqSE

indicator that the trim level of the vehicle is 'SE'.

subModelEq4DSEDAN

indicator that the submodel of the vehicle is '4DSedan'.

subModelEq4DSEDANLS

indicator that the submodel of the vehicle is '4DSedanLS'.

subModelEq4DSEDANSE

indicator that the submodel of the vehicle is '4DSedanSE'.

colourEqSilver

indicator that the vehicle color is silver.

colourEqWhite

indicator that the vehicle color is white.

colourEqBlue

indicator that the vehicle color is blue.

colourEqGrey

indicator that the vehicle color is grey.

colourEqBlack

indicator that the vehicle color is black.

colourEqRed

indicator that the vehicle color is red.

colourEqGold

indicator that the vehicle color is gold.

colourEqOrange

indicator that the vehicle color is orange.

transEqManual

indicator that the vehicle has manual transmission.

wheelEqAlloy

indicator that the vehicle has alloy wheels.

wheelEqCovers

indicator that the vehicle has covered wheels.

odomRead

the vehicle's odometer reading in miles.

AmericanMade

indicator that the vehicle was manufactured in the United States of America.

otherAsianMade

indicator that the vehicle was manuctured in an Asian nation other than Japan or South Korea.

sizeEqTruck

indicator that the size category of the vehicle is 'truck'.

sizeEqMedium

indicator that the size category of the vehicle is 'medium'.

sizeEqSUV

indicator that the size category of the vehicle is 'SUV'.

sizeEqCompact

indicator that the size category of the vehicle is 'compact'.

sizeEqVan

indicator that the size category of the vehicle is 'van'.

price

acquisition price for this vehicle in average condition at time of purchase in U.S. dollars.

purchInTexas

indicator that the vehicle was purchased in Texas.

purchInFlorida

indicator that the vehicle was purchased in Florida.

purchInCalifornia

indicator that the vehicle was purchased in California.

purchInNorthCarolina

indicator that the vehicle was purchased in North Carolina.

purchInArizona

indicator that the vehicle was purchased in Arizona.

purchInColorado

indicator that the vehicle was purchased in Colorado.

purchInSouthCarolina

indicator that the vehicle was purchased in South Carolina.

costAtPurch

acquisition cost paid for the vehicle at time of purchase.

onlineSale

indicator that the vehicle was purchased online.

warrantyCost

warranty cost in U.S. dollars.

Source

The “Don't Get Kicked” competition, https://www.kaggle.com.

Examples

library(HRW) ; data(carAuction)
## Not run: 
for (colNum in 3:10) 
{
   plot(jitter(carAuction[,colNum]),jitter(carAuction$IsBadBuy),pch = ".",
        xlab = names(carAuction)[colNum],ylab = "is car a bad buy?",col = "blue")
   readline("Hit Enter to continue.\n")
}
for (colNum in 11:51) 
{
   plot(jitter(carAuction[,colNum]),jitter(carAuction$IsBadBuy),pch = ".",
        xlab = names(carAuction)[colNum],ylab = "is car a bad buy?",col = "blue")
   readline("Hit Enter to continue.\n")
}

## End(Not run)