- V1
winters, is binary and indicates whether the plant may be left
in the garden when it freezes.
- V2
shadow, is binary and shows whether the plant needs to stand
in the shadow.
- V3
tubers, is asymmetric binary and distinguishes between plants
with tubers and plants that grow in any other way.
- V4
color, is nominal and specifies the flower's color (1 = white,
2 = yellow, 3 = pink, 4 = red, 5 = blue).
- V5
soil, is ordinal and indicates whether the plant grows in dry
(1), normal (2), or wet (3) soil.
- V6
preference, is ordinal and gives someone's preference ranking
going from 1 to 18.
- V7
height, is interval scaled, the plant's height in centimeters.
- V8
distance, is interval scaled, the distance in centimeters that
should be left between the plants.