something missing from the graph of recursive partitioning
Hi Paul, Many thanks for your help. It is very clear expalnation. Dechao --- Paul Murrell <p.murrell at auckland.ac.nz> wrote: > Hi
The following codes come from R example. I save
its
graph as rpart.ps, but the graph did not display
the
whole word, e.g. just display "bsent", not
"absent" in
the most left. can you advise me how to solve it?
The text is being clipped to the plot boundaries.
The following minor
adjustment to your code shows where the clipping is
occurring [indicated by
a dashed box around the plot boundary] and a
possible fix [via par(xpd)]:
library(rpart)
data(kyphosis)
fit <- rpart(Kyphosis ~ Age + Number + Start, data =
kyphosis)
fit2 <- rpart(Kyphosis ~ Age + Number + Start, data
=
kyphosis,
parms = list(prior = c(0.65, 0.35), split =
"information"))
postscript("rpart.ps", width=960, height=960)
par(mfrow = c(1, 2))
par(xpd=NA) # or par(xpd=T)
plot(fit)
text(fit, use.n = TRUE)
box("plot", lty="dashed")
plot(fit2)
text(fit2, use.n = TRUE)
box("plot", lty="dashed")
dev.off()
Paul
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