% Generated by roxygen2: do not edit by hand
% Please edit documentation in R/hopkins.R
\docType{data}
\name{hopkins}
\alias{hopkins}
\title{Hopkins burnt savanna herb remains}
\format{num [1:40, 1:40] 0 0 0 0 0 0 0 0 0 1 ...}
\source{
Upton, G., Fingleton, B. 1985 Spatial data analysis by example: point pattern and quatitative data, Wiley, pp. 38--39.
}
\usage{
hopkins
}
\description{
A 20m square is divided into 40 by 40 0.5m quadrats. Observations are in tens of grams of herb remains, 0 being from 0g to less than 10g, and so on. Analysis was mostly conducted using the interior 32 by 32 grid.
}
\examples{
data(hopkins)
image(1:32, 1:32, hopkins[5:36,36:5], breaks=c(-0.5, 3.5, 20),
      col=c("white", "black"))
}
\references{
Hopkins, B., 1965 Observations on savanna burning in the Olokemeji Forest Reserve, Nigeria. Journal of Applied Ecology, 2, 367--381.
}
\keyword{datasets}
\keyword{misc}