The Cars93 data frame has 93 rows and 27 columns.
Cars93This data frame contains the following columns:
ManufacturerManufacturer.
ModelModel.
TypeType: a factor with levels "Small", "Sporty",
"Compact", "Midsize", "Large" and "Van".
Min.PriceMinimum Price (in $1,000): price for a basic version.
PriceMidrange Price (in $1,000): average of Min.Price and
Max.Price.
Max.PriceMaximum Price (in $1,000): price for “a premium version”.
MPG.cityCity MPG (miles per US gallon by EPA rating).
MPG.highwayHighway MPG.
AirBagsAir Bags standard. Factor: none, driver only, or driver & passenger.
DriveTrainDrive train type: rear wheel, front wheel or 4WD; (factor).
CylindersNumber of cylinders (missing for Mazda RX-7, which has a rotary engine).
EngineSizeEngine size (litres).
HorsepowerHorsepower (maximum).
RPMRPM (revs per minute at maximum horsepower).
Rev.per.mileEngine revolutions per mile (in highest gear).
Man.trans.availIs a manual transmission version available? (yes or no, Factor).
Fuel.tank.capacityFuel tank capacity (US gallons).
PassengersPassenger capacity (persons)
LengthLength (inches).
WheelbaseWheelbase (inches).
WidthWidth (inches).
Turn.circleU-turn space (feet).
Rear.seat.roomRear seat room (inches) (missing for 2-seater vehicles).
Luggage.roomLuggage capacity (cubic feet) (missing for vans).
WeightWeight (pounds).
OriginOf non-USA or USA company origins? (factor).
MakeCombination of Manufacturer and Model (character).
Cars were selected at random from among 1993 passenger car models that were listed in both the Consumer Reports issue and the PACE Buying Guide. Pickup trucks and Sport/Utility vehicles were eliminated due to incomplete information in the Consumer Reports source. Duplicate models (e.g., Dodge Shadow and Plymouth Sundance) were listed at most once.
Further description can be found in Lock (1993).
Venables, W. N. and Ripley, B. D. (2002) Modern Applied Statistics with S-PLUS. Fourth Edition. Springer.