https://github.com/cran/gstat
Tip revision: 2b28322cd75357fc6c5547746b38a5c7d71f576a authored by Edzer J. Pebesma on 02 June 2005, 13:54:10 UTC
version 0.9-20
version 0.9-20
Tip revision: 2b28322
walker.Rd
\name{walker}
\alias{walker}
\title{Walker Lake sample data set}
\description{
This is the Walker Lake sample data set (not the exhaustive
data set!), used in Isaaks and Srivastava's Applied Geostatistics.
}
\format{
This data frame contains the following columns:
\describe{
\item{Id}{Identification Number}
\item{X}{Xlocation in meter}
\item{Y}{Ylocation in meter}
\item{V}{V variable, concentration in ppm}
\item{U}{U variable, concentration in ppm}
\item{T}{T variable, indicator variable}
}
}
\usage{
data(walker)
}
\references{
Applied Geostatistics
by Edward H. Isaaks, R. Mohan Srivastava;
Oxford University Press.
}
\note{
This data set was obtained from
\url{http://www.ai-geostats.org/resources/data/walker.dat};
The full (exhaustive) Walker Lake set is available from
\url{http://www.ai-geostats.org/resources/data/WalkerLake.zip}
}
\keyword{datasets}
\examples{
data(walker)
summary(walker)
}