DT_yatesoats: Yield of oats in a split-block experiment
In sommer: Solving Mixed Model Equations in R

DT_yatesoats

R Documentation

Yield of oats in a split-block experiment

Description

The yield of oats from a split-plot field trial using three varieties and four levels of manurial treatment. The experiment was laid out in 6 blocks of 3 main plots, each split into 4 sub-plots. The varieties were applied to the main plots and the manurial (nitrogen) treatments to the sub-plots.

Format

block: block factor with 6 levels
nitro: nitrogen treatment in hundredweight per acre
Variety: genotype factor, 3 levels
yield: yield in 1/4 lbs per sub-plot, each 1/80 acre.
row: row location
column: column location

Source

Yates, Frank (1935) Complex experiments, Journal of the Royal Statistical Society Suppl. 2, 181–247.

References

Venables, W. N. and Ripley, B. D. (2002) Modern Applied Statistics with S. Fourth edition. Springer.

Examples


### ========================== ###
### ========================== ###
data(DT_yatesoats)
DT <- DT_yatesoats
head(DT)
# m3 <- mmer(fixed=Y ~ V + N + V:N,
#            random = ~ B + B:MP,
#            rcov=~units,
#            data = DT)
# summary(m3)$varcomp
# 
# m3b <- mmec(fixed=Y ~ V + N + V:N,
#            random = ~ B + B:MP,
#            rcov=~units,
#            data = DT)
# summary(m3b)$varcomp

sommer documentation built on Nov. 13, 2023, 9:05 a.m.