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\name{RFempVariog-class}
\docType{class}
\alias{RFempVariog-class}
\alias{coerce,RFempVariog,list-method}
\alias{show,RFempVariog-method}
\alias{persp,RFempVariog-method}
\alias{print,RFempVariog-method}
\alias{summary,RFempVariog-method}
\alias{print.RF_empVariog}
\alias{summary.RF_empVariog}
\alias{plot,RFempVariog,missing-method}
\alias{RFplotEmpVariogram}
\title{Class \code{RFempVariog}}
\description{Class for RandomFields' representation of empirical variograms
}
%\section{Creating Objects}{
% Objects are created by calling a function of class
% \command{\link[=RMmodelgenerator-class]{RMmodelgenerator}}
%}
\usage{
RFplotEmpVariogram(x, model = NULL, nmax.phi = NA, nmax.theta = NA,
nmax.T = NA,
plot.nbin = TRUE, plot.sd=FALSE, method = "ml",
variogram=TRUE,
boundaries = TRUE,
...)
\S4method{plot}{RFempVariog,missing}(x, y, ...)
\S4method{persp}{RFempVariog}(x, ...)
}
\arguments{
\item{x}{object of class
\command{\link[=RFempVariog-class]{RFempVariog}}
}
\item{y}{unused}
\item{model}{\argModel. Or a list of such models. Tit gives the
covariance or variogram models that are to be plotted into the same
plot as the empirical variogram (and the fitted models)}
\item{nmax.phi}{even integer; only for \code{class(x)=="RFempVariog"};
the number of bins of angle phi that are to be
plotted}.
\item{nmax.theta}{integer; only for \code{class(x)=="RFempVariog"};
the number of bins of angle theta that are to be
plotted}
\item{nmax.T}{integer; only for \code{class(x)=="RFempVariog"};
the maximal number of different time bins that are to be
plotted}
\item{plot.nbin}{logical; only for \code{class(x)=="RFempVariog"};
indicates whether the number of pairs per bin are to be plotted}
\item{plot.sd}{logical; only for \code{class(x)=="RFempVariog"};
indicates whether the calculated standard deviation (\code{x@sd}) is
to be plotted (in form of arrows of length +-1*sd)}
\item{method}{character. Currently restricted to \code{"ml"} for
maximum-likelihood method.
}
\item{variogram}{logical; This argument should currently not be set
by the user. If \code{TRUE} then the empirical variogram
is plotted, else an estimate for the covariance function.}
\item{boundaries}{logical; only for \code{class(x)=="RFempVariog"} and
the anisotropic case where \code{model} is given.
As the empirical variogram is calculated on a sector of angles,
no exact variogram curve corresponds to the mean values in this
sector.
If \code{boundaries=TRUE} the values of the variogram on the sector
boundaries are plotted. If \code{FALSE} some kind of mean
model values are plotted. Neither the boundaries may contain
the values of empirical variogram nor does the mean values
need to be close the empirical variogram.
}
\item{...}{arguments to be passed to methods; mainly graphical
arguments.
%see Details.
}
}
\section{Slots}{
\describe{
\item{\code{centers}:}{the bin centres of the spatial distances}
\item{\code{empirical}:}{value of the empirical variogram}
\item{\code{var}:}{
the empirical (overall) variance in the data
}
\item{\code{sd}:}{standard deviation of the variogram cloud within each
bin}
\item{\code{n.bin}:}{number of bins}
\item{\code{phi.centers}:}{centres of the bins with respect to the
(first) angle (for anisotropic empirical variograms only)}
\item{\code{theta.centers}:}{centres of the bins with respect to the
second angle (for anisotropic empirical variograms in 3D only)}
\item{\code{T}:}{the bin centres of the time axis}
\item{\code{vdim}:}{the multivariate dimension}
\item{\code{coordunits}:}{string giving the units of the coordinates,
see also option \code{coordunits} of \command{\link{RFoptions}}.
}
\item{\code{varunits}:}{string giving the units of the variables,
see also option \code{varunits} of \command{\link{RFoptions}}.
}
\item{\code{call}:}{language object; the function call by which the
object was generated}
\item{\code{method}:}{integer; variogram (0), covariance (2), madogram (4) }
}
}
\section{Methods}{
\describe{
\item{plot}{\code{signature(x = "RFempVariog")}: gives a plot of the
empirical variogram, for more details see
\command{\link{plot-method}}.}
\item{plot}{\code{signature(x = "RFempVariog", y = "missing")}}{Gives nice
plots of the empirical variogram; handles binning in up to three
space-dimensions and a time-dimension, where the empirical variogram
is plotted along lines which are directed according to the
angle-centers given in \code{x@phi.centers} and
\code{x@theta.centers}; arbitrary theoretical model curves
can be added to the plot by using the argument \code{model}.
If no bins are given, i.e. (\code{x@bin=NULL}),
\command{\link[graphics]{image}}-plots are generated.}
\item{as}{\code{signature(x = "RFempVariog")}:
converts into other formats, only implemented for target class
\code{\link[methods:list-class]{list}}.}
\item{show}{\code{signature(x = "RFfit")}: returns the structure
of \code{x}}
\item{persp}{\code{signature(obj =
"RFempVariog")}: generates nice \command{\link[graphics]{persp}} plots
}
\item{print}{\code{signature(x = "RFfit")}: identical with
\command{show}-method}
\item{summary}{provides a summary}
}
}
\section{Details}{
\command{print} returns also an invisible list that is convenient to access.
}
\author{Alexander Malinowski, \martin}
\seealso{
\command{\link{RFvariogram}},
\command{\link{plot-method}}
}
\examples{\dontshow{StartExample()}
# see 'RFvariogram'
\dontshow{FinalizeExample()}}
\keyword{classes}
\keyword{print}
\keyword{hplot}
|
