A data frame with 1728 observations on the following 6 variables.
buyingthe buying price (4 modalities: vhigh, high, med, low)
maintthe price of the maintenance (4 modalities: vhigh, high, med, low)
doorsthe number of doors (4 modalities: 2, 3, 4, 5more)
personsthe capacity in terms of persons to carry (3 modalities: 2, 4, more)
lug_bootthe size of luggage boot (3 modalities: small, med, big)
safetythe estimated safety of the car (3 modalities: low, med, high)
acceptabilitythe car acceptability (4 modalities: unacc, acc, good, vgood)