Hi:
Here are a couple of attempts, one with base graphics and one with lattice.
d <- data.frame(TreatA = gl(2, 50, 100, labels = c('High', 'Low')),
TreatB = rep(gl(2, 25, 50, labels = c('High', 'Low')), 2),
Test = c(rnorm(50, 50, 10), rnorm(50, 100, 10)))
lbl <- c(
Dear All
I would like to produce interaction boxplots and this seems to work:
par(mfrow=c(2,2))
A=sample(rnorm(50,50,10))
B=sample(rnorm(50,100,10))
Test=merge(A,B,by=0)#by=0 where 0 is the row.names
TreatA=(gl(2,50,100,labels=c("High","Low")))
TreatB=rep(gl(2,25,50,labels=c("High","Low")),2)
Ne
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