redwood.Rd
\name{redwood}
\alias{redwood}
\docType{data}
\title{
California Redwoods Point Pattern (Ripley's Subset)
}
\description{
Locations of 62 seedlings and saplings
of California redwood trees.
The data represent the locations of 62 seedlings and saplings
of California redwood trees in a square sampling region.
They originate from Strauss (1975);
the present data are a subset extracted by Ripley (1977)
in a subregion that has been rescaled to a unit square.
There are many further analyses of this dataset. It is often used as a
canonical example of a clustered point pattern
(see e.g. Diggle, 1983).
The original, full redwood dataset is supplied in the \code{spatstat}
library as \code{redwoodfull}.
}
\format{
An object of class \code{"ppp"}
representing the point pattern of tree locations.
The window has been rescaled to the unit square.
See \code{\link{ppp.object}} for details of the format of a
point pattern object.
}
\usage{data(redwood)}
\source{Strauss (1975), subset extracted by Ripley (1977)}
\seealso{
\code{\link{redwoodfull}}
}
\references{
Diggle, P.J. (1983)
\emph{Statistical analysis of spatial point patterns}.
Academic Press.
Ripley, B.D. (1977)
Modelling spatial patterns (with discussion).
\emph{Journal of the Royal Statistical Society, Series B}
\bold{39}, 172--212.
Strauss, D.J. (1975)
A model for clustering.
\emph{Biometrika} \bold{63}, 467--475.
}
\keyword{datasets}
\keyword{spatial}