sugar {Rnotes} | R Documentation |
A classical 3 by 2-cubed randomized block experiment in four blocks of size 24. The response is the total weight of sugarbeet roots off the plot, but this is accompanied by the number of roots measured. The suggestion is that number of roots should be a covariate to allow for varying plot size.
The data frame contains the following components:
Block |
Block number, I, II, III or IV |
V |
Variety |
N |
Nitrogen present/absent |
P |
Phosphorous present/absent |
K |
Potassium present/absent |
No |
Number of roots |
Wt |
Weight |
Analysis of variance and covariance.
R. A. Fisher, "Design of Experiments"