plot.lpp: Plot Point Pattern on Linear Network

Description

Plots a point pattern on a linear network. Plot method for the class "lpp" of point patterns on a linear network.

Usage

## S3 method for class 'lpp':
plot(x, \dots, main, add = FALSE,
                   use.marks=TRUE, which.marks=NULL,
                   show.all = !add, do.plot = TRUE, multiplot=TRUE)

Arguments

Point pattern on a linear network (object of class "lpp").

...

Additional arguments passed to plot.linnet or plot.ppp.

main

Main title for plot.

add

Logical value indicating whether the plot is to be added to the existing plot (add=TRUE) or whether a new plot should be initialised (add=FALSE, the default).

use.marks

logical flag; if TRUE, plot points using a different plotting symbol for each mark; if FALSE, only the locations of the points will be plotted, using points().

which.marks

Index determining which column of marks to use, if the marks of x are a data frame. A character or integer vector identifying one or more columns of marks. If add=FALSE then the default is to plot all columns

show.all

Logical value indicating whether to plot everything including the main title and the observation window of x.

do.plot

Logical value determining whether to actually perform the plotting.

multiplot

Logical value giving permission to display multiple plots.

Value

(Invisible) object of class "symbolmap" giving the correspondence between mark values and plotting characters.

Details

The linear network is plotted by plot.linnet, then the points are plotted by plot.ppp.

Commonly-used arguments include:

colandlwdfor the colour and width of lines in the linear network
colsfor the colour or colours of the points
charsfor the plot characters representing different types of points
legendandleg.sideto control the graphics legend
show.window=FALSEto suppress the box drawn around the linear network.

Examples

Run this code

plot(chicago, cols=1:6)