I am using tree() in some classification work, and have been trying to
suppress the number of significant digits shown in the output plot.
There is a "digits" parameter that can be used in text.tree(), but I
can't seem to make it have any effect. Here is some example code to
illustrate what I mean:
####################################################
#some fake data
set.seed(123)
f1 <- factor(rep(1:4, 50))
m1 <- matrix(runif(800), nc=4)
d1 <- data.frame(f1, m1)
#the test
library(tree)
mdl1 <- tree(f1 ~ ., data=d1)
#(messy) output
plot(mdl1); text(mdl1, cex=.6)
plot(mdl1); text(mdl1, cex=.6, digits=2) #no change to labelling
#help!
?text.tree
####################################################
Can anyone spot my error? Many thanks for any help.
Ian Robertson
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