Description
The Cars93 data frame has 93 rows and 27 columns.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).References
Venables, W. N. and Ripley, B. D. (1999)
Modern Applied Statistics with S-PLUS. Third
Edition. Springer.