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\name{plot.fasp}
\alias{plot.fasp}
\title{Plot a Function Array}
\description{
Plots an array of summary functions, usually associated with a
point pattern, stored in an object of class \code{"fasp"}.
A method for \code{plot}.
}
\usage{
\method{plot}{fasp}(x,formule=NULL, \dots,
subset=NULL, title=NULL, banner=TRUE,
transpose=FALSE,
samex=FALSE, samey=FALSE,
mar.panel=NULL,
outerlabels=TRUE, cex.outerlabels=1.25,
legend=FALSE)
}
\arguments{
\item{x}{An object of class \code{"fasp"} representing a
function array.
}
\item{formule}{
A formula or list of formulae indicating what
variables are to be plotted against what variable. Each formula is
either an R language formula object, or a string that can be parsed
as a formula. If \code{formule} is a list, its \eqn{k^{th}}{k-th} component
should be applicable to the \eqn{(i,j)^{th}}{(i,j)-th}
plot where \code{x$which[i,j]=k}. If the formula is left
as \code{NULL}, then \code{plot.fasp} attempts to use the component
\code{default.formula} of \code{x}. If that component is NULL
as well, it gives up.
}
\item{\dots}{
Arguments passed to \code{\link{plot.fv}} to control
the individual plot panels.
}
\item{subset}{
A logical vector, or a vector of indices, or an
expression or a character string, or a \bold{list} of such,
indicating a subset of the data to be included in each plot.
If \code{subset} is a list, its \eqn{k^{th}}{k-th} component
should be applicable to the \eqn{(i,j)^{th}}{(i,j)-th} plot
where \code{x$which[i,j]=k}.
}
\item{title}{
Overall title for the plot.
}
\item{banner}{
Logical. If \code{TRUE}, the overall title is plotted.
If \code{FALSE}, the overall title is not plotted
and no space is allocated for it.
}
\item{transpose}{
Logical. If \code{TRUE}, rows and columns will be exchanged.
}
\item{samex,samey}{
Logical values indicating whether all individual plot panels should have the
same x axis limits and the same y axis limits, respectively.
This makes it easier to compare the plots.
}
\item{mar.panel}{
Vector of length 4 giving the value of the
graphics parameter \code{mar} controlling the size of plot margins
for each individual plot panel. See \code{\link{par}}.
}
\item{outerlabels}{Logical.
If \code{TRUE}, the row and column names of the array of functions
are plotted in the margins of the array of plot panels.
If \code{FALSE}, each individual plot panel is labelled by its
row and column name.
}
\item{cex.outerlabels}{
Character expansion factor for row and column labels of array.
}
\item{legend}{
Logical flag determining whether to plot a legend in each panel.
}
}
\details{
An object of class \code{"fasp"} represents
an array of summary functions, usually associated with a point
pattern. See \code{\link{fasp.object}} for details.
Such an object is created, for example,
by \code{\link[spatstat.explore]{alltypes}}.
The function \code{plot.fasp} is
a method for \code{plot}. It calls \code{\link{plot.fv}} to plot the
individual panels.
For information about the interpretation of the
arguments \code{formule} and \code{subset},
see \code{\link{plot.fv}}.
Arguments that are often passed through \code{...} include
\code{col} to control the colours of the different lines in a panel,
and \code{lty} and \code{lwd} to control the line type and line width
of the different lines in a panel. The argument \code{shade}
can also be used to display confidence intervals or significance bands
as filled grey shading. See \code{\link{plot.fv}}.
The argument \code{title}, if present, will determine the
overall title of the plot. If it is absent, it defaults to \code{x$title}.
Titles for the individual plot panels will be taken from
\code{x$titles}.
}
\value{None.}
\section{Warnings}{
(Each component of) the \code{subset} argument may be a
logical vector (of the same length as the vectors of data which
are extracted from \code{x}), or a vector of indices, or an
\bold{expression} such as \code{expression(r<=0.2)}, or a text string,
such as \code{"r<=0.2"}.
Attempting a syntax such as \code{subset = r<=0.2} (without
wrapping \code{r<=0.2} either in quote marks or in \code{expression()})
will cause this function to fall over.
Variables referred to in any formula must exist in the data frames
stored in \code{x}. What the names of these variables are will
of course depend upon the nature of \code{x}.
}
\seealso{
\code{\link[spatstat.explore]{alltypes}},
\code{\link{plot.fv}},
\code{\link{fasp.object}}
}
\examples{
if(interactive()) {
X.G <- alltypes(amacrine,"G")
plot(X.G)
plot(X.G,subset="r<=0.2")
plot(X.G,formule=asin(sqrt(cbind(km,theo))) ~ asin(sqrt(theo)))
plot(X.G,fo=cbind(km,theo) - theo~r, subset="theo<=0.9")
}
}
\author{\adrian
and \rolf
}
\keyword{spatial}
\keyword{hplot}
|
