R: Plot a Tree Sequence

plot.tree.sequence {tree} | R Documentation

## Plot a Tree Sequence

### Description

Allows the user to plot a tree sequence.

### Usage

    ## S3 method for class 'tree.sequence'
    plot(x, ..., type = "l", ylim = range(x$dev),
        order = c("increasing", "decreasing"))

### Arguments

`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.
`type, ylim, ...` | graphical parameters.

### Details

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.

### Side Effects

Plots deviance or number of misclassifications (or total loss) versus size for a sequence of trees.

### Examples

    data(cpus, package="MASS")
    cpus.ltr <- tree(log(perf) ~ syct + mmin + mmax + cach + chmin + chmax,
                     data = cpus)
    plot(prune.tree(cpus.ltr))

[Package tree version 1.0-39 Index]