rpart: text.rpart – R documentation

Pricing

Become an expert in R — Interactive courses, Cheat Sheets, certificates and more!

Get Started for Free

Documentation

rpart

text.rpart

Place Text on a Dendrogram Plot

Description

Labels the current plot of the tree dendrogram with text.

Usage

## S3 method for class 'rpart'
text(x, splits = TRUE, label, FUN = text, all = FALSE,
     pretty = NULL, digits = getOption("digits") - 3, use.n = FALSE,
     fancy = FALSE, fwidth = 0.8, fheight = 0.8, bg = par("bg"),
     minlength = 1L, ...)

Arguments

`x`	fitted model object of class `"rpart"`. This is assumed to be the result of some function that produces an object with the same named components as that returned by the `rpart` function.
`splits`	logical flag. If `TRUE` (default), then the splits in the tree are labeled with the criterion for the split.
`label`	For compatibility with `rpart2`, ignored in this version (with a warning).
`FUN`	the name of a labeling function, e.g. `text`.
`all`	Logical. If `TRUE`, all nodes are labeled, otherwise just terminal nodes.
`minlength`	the length to use for factor labels. A value of 1 causes them to be printed as ‘a’, ‘b’, ..... Larger values use abbreviations of the label names. See the `labels.rpart` function for details.
`pretty`	an alternative to the `minlength` argument, see `labels.rpart`.
`digits`	number of significant digits to include in numerical labels.
`use.n`	Logical. If `TRUE`, adds to label (\#events level1/ \#events level2/etc. for `class`, `n` for `anova`, and \#events/n for `poisson` and `exp`).
`fancy`	Logical. If `TRUE`, nodes are represented by ellipses (interior nodes) and rectangles (leaves) and labeled by `yval`. The edges connecting the nodes are labeled by left and right splits.
`fwidth`	Relates to option `fancy` and the width of the ellipses and rectangles. If `fwidth < 1` then it is a scaling factor (default = 0.8). If `fwidth > 1` then it represents the number of character widths (for current graphical device) to use.
`fheight`	Relates to option `fancy` and the height of the ellipses and rectangles. If `fheight <1` then it is a scaling factor (default = 0.8). If `fheight > 1` then it represents the number of character heights (for current graphical device) to use.
`bg`	The color used to paint the background to annotations if `fancy = TRUE`.
`...`	Graphical parameters may also be supplied as arguments to this function (see `par`). As labels often extend outside the plot region it can be helpful to specify `xpd = TRUE`.

Side Effects

the current plot of a tree dendrogram is labeled.

Examples

freen.tr <- rpart(y ~ ., freeny)
par(xpd = TRUE)
plot(freen.tr)
text(freen.tr, use.n = TRUE, all = TRUE)

rpart

Recursive Partitioning and Regression Trees

v4.1-15

GPL-2 | GPL-3

Authors

Terry Therneau [aut], Beth Atkinson [aut, cre], Brian Ripley [trl] (producer of the initial R port, maintainer 1999-2017)

Initial release

2019-04-10

text.rpart

Description

Usage

Arguments

Side Effects

See Also

Examples

rpart

We don't support your browser anymore