qwe84 wrote:
Hello, I'm a totally newbie to R and I'm taking a class using S+.
In the class we use the multcomp command which takes a aov object and
calculates confidence intervals for all pairwise differences by the Fisher
least significant differences method.
How can I do this in R.
Thank you for taking the time with such a basic question. I've been looking
on the net for a few days and I can't seem to find an answer clear enough
for my level.
In R, the package is multcomp.
From
?glht
### multiple comparison procedures
### set up a one-way ANOVA
amod <- aov(breaks ~ tension, data = warpbreaks)
### set up all-pair comparisons for factor `tension'
### using a symbolic description (`type' argument
### to `contrMat()')
glht(amod, linfct = mcp(tension = "Tukey"))
I usually use additional functions in the package
amod.glht <- glht(amod, linfct = mcp(tension = "Tukey"))
confint(amod.glht)
plot(amod.glht)
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