rootstock {ACSWR} | R Documentation |
Apple of Different Rootstock
Description
The goal is to test if the mean vector of the four variables is same across 6 stratas of the experiment.
Usage
data(rootstock)
Format
A data frame with 48 observations on the following 5 variables.
rootstock
Six different rootstocks
y1
trunk girth at 4 years
y2
extension growth at 4 years
y3
trunk girth at 15 years
y4
weight of tree above ground at 15 years
References
Rencher, A.C. (2002). Methods of Multivariate Analysis, 2e. J. Wiley.
Examples
data(rootstock)
attach(rootstock)
rs <- rootstock[,1]
rs <- factor(rs,ordered=is.ordered(rs)) # Too important a step
root.manova <- manova(cbind(y1,y2,y3,y4)~rs)
summary(root.manova, test = "Wilks")
[Package ACSWR version 1.0 Index]