Dear r-helpers,
plot(all.effects()) uses trellis for its output, and often produces
several effect plots in a layout. Can anyone tell me how to set the
arguments to plot.effect which default to
row=1, col=1, nrow=1, ncol=1, more=FALSE
so that I can plot multiple effect plots on one layout?
I was hoping that a call like
last <- rep(c(TRUE, FALSE), c(3, 1))
lay <-matrix(c(1:4,), 2, 2, byrow = T)
for(i in 1:4) {
tmp.lm <- lm(y ~ a + b, data)
spl <- which(lay == i, arr.ind = TRUE)
rowN = spl[1]
colN = spl[2]
plot(all.effects(tmp.lm), row = rowN, col = colN, nrow = 2, ncol =
2, more = last[i])
}
would work (my data are complicated, and have not had the time to set
up a replicable example).
Here is what I ran, and what R told me:
for(i in 1:4) {
tmp.lm <- lm(duration ~ (pitch + vis + aud + display)^2 -
aud:display - vis:aud -
pitch:vis, data = subset(txt, subj == unique(txt$subj)[i]))
spl <- which(lay == i, arr.ind = TRUE)
rowN = spl[1]
colN = spl[2]
plot(all.effects(tmp.lm), rug = F, ask = F,
main = paste('Subject = ',sep = '', i),
row = rown, col = coln, nrow = 2, ncol = 2, more = last[i])
}
Error in plot.effect(x[[(i - 1) * cols + j]], row = i, col = j, nrow
= rows, :
formal argument "row" matched by multiple actual arguments
_____________________________
Professor Michael Kubovy
University of Virginia
Department of Psychology
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