sommer (version 4.3.5)

DT_yatesoats: 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

References

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

Examples

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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