The cabbages
data set has 60 observations and 4 variables
cabbages
This data frame contains the following columns:
Cult
Factor giving the cultivar of the cabbage, two levels: c39
and c52
.
Date
Factor specifying one of three planting dates: d16
,
d20
or d21
.
HeadWt
Weight of the cabbage head, presumably in kg.
VitC
Ascorbic acid content, in undefined units.
Venables, W. N. and Ripley, B. D. (1999) Modern Applied Statistics with S-PLUS. Third Edition. Springer.