Yield of oats in a split-block experiment
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.
blockblock factor with 6 levels
nitronitrogen treatment in hundredweight per acre
Varietygenotype factor, 3 levels
yieldyield in 1/4 lbs per sub-plot, each 1/80 acre.
rowrow location
columncolumn location
Yates, Frank (1935) Complex experiments, Journal of the Royal Statistical Society Suppl. 2, 181–247.
Venables, W. N. and Ripley, B. D. (2002) Modern Applied Statistics with S. Fourth edition. Springer.
### ========================== ### ### ========================== ### 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)
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