| Oats {nlme} | R Documentation |
The Oats data frame has 72 rows and 4 columns.
This data frame contains the following columns:
an ordered factor with levels
VI < V < III < IV < II < I
a factor with levels
Golden Rain
Marvellous
Victory
a numeric vector
a numeric vector
These data have been introduced by Yates (1935) as an example of a split-plot design. The treatment structure used in the experiment was a 3 x 4 full factorial, with three varieties of oats and four concentrations of nitrogen. The experimental units were arranged into six blocks, each with three whole-plots subdivided into four subplots. The varieties of oats were assigned randomly to the whole-plots and the concentrations of nitrogen to the subplots. All four concentrations of nitrogen were used on each whole-plot.
Pinheiro, J. C. and Bates, D. M. (2000), Mixed-Effects Models in S and S-PLUS, Springer, New York. (Appendix A.15)
Venables, W. N. and Ripley, B. D. (2002) Modern Applied Statistics with S. (4th ed), Springer, New York.