genpathmox (version 0.2)

plot.xtree.reg: Plot function for the Pathmox Segmentation Trees: linaer regression and LAD

Description

The function plot.xtree.reg allows to drow PATHMOX tree for linear and LAD regression

Usage

## S3 method for class 'xtree.reg':
plot(x, root.col = "grey", node.col = "orange",
  leaf.col = "green2", shadow.size = 0.003, node.shadow = "red",
  leaf.shadow = "darkgreen", cex = 0.7, seg.col = "blue3", lwd = 1,
  show.pval = TRUE, pval.col = "blue", main = NULL, cex.main = 1, ...)

Arguments

x

An object of class "xtree.reg" returned by reg.pathmox

root.col

Fill color of root node.

node.col

Fill color of child nodes.

leaf.col

Fill color of col.

shadow.size

Relative size of shadows.

node.shadow

Color of shadow of child nodes.

leaf.shadow

Color of shadow of leaf nodes.

cex

A numerical value indicating the magnification to be used for plotting text.

seg.col

The color to be used for the labels of the segmentation variables.

lwd

The line width, a positive number, defaulting to 1.

show.pval

Logical value indicating whether the p-values should be plotted.

pval.col

The color to be used for the labels of the p-values.

main

A main title for the plot.

cex.main

The magnification to be used for the main title.

...

Further arguments are ignored.

Examples

# example of LM in alumni satisfaction

data(fibtelereg)

segvar= fibtelereg[,2:11]

data.fib=fibtelereg[,12:18]

segvar$Age 		= factor(segvar$Age, ordered=T)
segvar$Salary 	= factor(segvar$Salary,
		levels=c("<18k","25k","35k","45k",">45k"), ordered=T)
segvar$Accgrade = factor(segvar$Accgrade,
		levels=c("accnote<7","7-8accnote","accnote>8"), ordered=T)
segvar$Grade 	= factor(segvar$Grade,
		levels=c("<6.5note","6.5-7note","7-7.5note",">7.5note"), ordered=T)

fib.reg.pathmox=reg.pathmox(Satisfact~.,data=data.fib,segvar,
			signif=0.05,deep=2,method="lm",size=0.15)

plot(fib.reg.pathmox)