plot.tree.sequence {tree} | R Documentation |
Allows the user to plot a tree sequence.
plot.tree.sequence(x, ..., order = c("increasing", "decreasing"))
x |
object of class tree.sequence .
This is assumed to be the result of some function that produces
an object with the same named components (size ,
deviance , k )
as that returned by prune.tree() . |
order |
of size on the plot. Use "decreasing" for
the natural ordering of k
and the amount of pruning. Only the first character is needed.
|
This function is a method for the generic function
plot()
for class tree.sequence
.
It can be invoked by calling plot(x)
for an
object x
of the appropriate class, or directly by
calling plot.tree.sequence(x)
regardless of the
class of the object.
Plots deviance or number of misclassifications (or total loss) versus size for a sequence of trees.
library(MASS) data(cpus) cpus.ltr <- tree(log(perf) ~ syct + mmin + mmax + cach + chmin + chmax, data = cpus) plot(prune.tree(cpus.ltr))