Description

The Cars93 data frame has 93 rows and 27 columns.

Usage

Format

This data frame contains the following columns:

Manufacturer

Manufacturer.

Model

Model.

Type

Type: a factor with levels "Small", "Sporty", "Compact", "Midsize", "Large" and "Van".

Min.Price

Minimum Price (in \$1,000): price for a basic version.

Price

Midrange Price (in \$1,000): average of Min.Price and Max.Price.

Max.Price

Maximum Price (in \$1,000): price for “a premium version”.

MPG.city

City MPG (miles per US gallon by EPA rating).

MPG.highway

Highway MPG.

AirBags

Air Bags standard. Factor: none, driver only, or driver & passenger.

DriveTrain

Drive train type: rear wheel, front wheel or 4WD; (factor).

Cylinders

Number of cylinders (missing for Mazda RX-7, which has a rotary engine).

EngineSize

Engine size (litres).

Horsepower

Horsepower (maximum).

RPM

RPM (revs per minute at maximum horsepower).

Rev.per.mile

Engine revolutions per mile (in highest gear).

Man.trans.avail

Is a manual transmission version available? (yes or no, Factor).

Fuel.tank.capacity

Fuel tank capacity (US gallons).

Passengers

Passenger capacity (persons)

Length

Length (inches).

Wheelbase

Wheelbase (inches).

Width

Width (inches).

Turn.circle

U-turn space (feet).

Rear.seat.room

Rear seat room (inches) (missing for 2-seater vehicles).

Luggage.room

Luggage capacity (cubic feet) (missing for vans).

Weight

Weight (pounds).

Origin

Of non-USA or USA company origins? (factor).

Make

Combination of Manufacturer and Model (character).

Details

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).

Source

Lock, R. H. (1993) 1993 New Car Data. Journal of Statistics Education 1(1). doi: 10.1080/10691898.1993.11910459

References

Venables, W. N. and Ripley, B. D. (1999) Modern Applied Statistics with S-PLUS. Third Edition. Springer.