Generates a layered plot.
The plot method for objects of class "layered".
Usage
## S3 method for class 'layered':
plot(x, ..., which = NULL, plotargs = NULL)
Arguments
x
An object of class "layered"
created by the function layered.
...
Arguments to be passed to the plot method
for every layer.
which
Subset index specifying which layers should be plotted.
plotargs
Arguments to be passed to the plot methods
for individual layers. A list of lists of arguments of the
form name=value.
Value
Null.
Details
Layering is a simple mechanism for controlling
a high-level plot that is composed of
several successive plots, for example, a background and a foreground
plot. The layering mechanism makes it easier to plot,
to switch on or off the plotting of each individual layer,
and to control the plotting arguments that are
passed to each layer.
The layers of data to be plotted should first be converted
into a single object of class "layered" using the
function layered. Then the layers can be plotted using
the method plot.layered.