The
immer
data frame has 30 rows and 4
columns. Five varieties of barley were grown in six locations in each
of 1931 and 1932.
This data frame contains the following columns:
"manchuria"
,
"svansota"
,
"velvet"
,
"trebi"
and
"peatland"
).
Immer, F.R., Hayes, H.D. and LeRoy Powers (1934)
Statistical determination of barley varietal adaptation.
Journal of the American Society for Agronomy
26, 403-419.
Fisher, R.A. (1947)
The Design of Experiments.
4th edition.
Edinburgh: Oliver and Boyd.
immer.aov <- aov(cbind(Y1,Y2) ~ Loc + Var, data = immer) summary(immer.aov) immer.aov <- aov((Y1+Y2)/2 ~ Var + Loc, data = immer) summary(immer.aov) model.tables(immer.aov, type = "means", se = T, cterms = "Var") multicomp(immer.aov, plot = T)