spatstat (version 1.31-3)

plot.splitppp: Plot a List of Point Patterns

Description

Plots a list of point patterns.

Usage

## S3 method for class 'splitppp':
plot(x, \dots, main, arrange=TRUE,
   nrows=NULL, ncols=NULL, main.panel=NULL, mar.panel=c(2,1,1,2),
   panel.begin=NULL, panel.end=NULL, panel.args=NULL, plotcommand="plot",
   adorn.left=NULL, adorn.right=NULL, adorn.top=NULL, adorn.bottom=NULL,
   adorn.size=0.2)

Arguments

x

A named list of point patterns, typically obtained from split.ppp.

...

Arguments passed to plot.ppp which control the appearance of each plot panel.

main

Overall heading for the plot.

arrange

Logical flag indicating whether to plot the point patterns side-by-side on a single page (arrange=TRUE) or plot them individually in a succession of frames (arrange=FALSE).

nrows,ncols

Optional. The number of rows/columns in the plot layout (assuming arrange=TRUE). You can specify either or both of these numbers.

main.panel

Optional. A character string, or a vector of character strings, giving the headings for each of the point patterns.

mar.panel

Optional value of the graphics parameter mar controlling the size of the margins outside each plot panel. See the help file for par.

panel.begin,panel.end

Optional. Functions that will be executed before and after each panel is plotted. See Details.

panel.args

Internal use only.

plotcommand

Optional. Character string containing the name of the command that should be executed to plot each panel.

adorn.left,adorn.right,adorn.top,adorn.bottom

Optional. Functions (with no arguments) that will be executed to generate additional plots at the margins (left, right, top and/or bottom, respectively) of the array of plots.

adorn.size

Relative width (as a fraction of the other panels' widths) of the margin plots.

Value

• Null.

Details

This is the plot method for the class "splitppp". It is typically used to plot the result of the function split.ppp but it may also be used to plot any list of point patterns created by the user.

The argument x should be a named list of point patterns (objects of class "ppp", see ppp.object). Each of these point patterns will be plotted in turn using plot.ppp.

The arguments panel.begin and panel.end may be functions that will be executed before and after each panel is plotted. They will be called as panel.begin(i, y, main=main.panel[i]) and panel.end(i, y, add=TRUE).

Alternatively, panel.begin and panel.end may be objects of some class that can be plotted with the generic plot command. They will be plotted before and after each panel is plotted.

See Also

split.ppp, plot.ppp, ppp.object

Examples

# Multitype point pattern
 data(amacrine)
 plot(split(amacrine))
 plot(split(amacrine), main="", 
     panel.begin=function(i, y, ...) { plot(density(y), ribbon=FALSE, ...) })