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\name{lcancer}
\alias{lcancer}
\title{Spatial positions of cases of laryngeal cancer}
\description{
These data record the spatial positions of cases of laryngeal cancer
in the North-West of England between 1974 and 1983, together with the
positions of a number of lung cancer patients who were used as controls.
The data have been adjusted to preserve anonymity.
The variables are:
\tabular{ll}{
\code{Easting} \tab a west-east grid reference \cr
\code{Northing} \tab a north-south grid reference \cr
\code{Cancer} \tab an indicator of laryngeal (1) or lung (2) cancer
}
Source: Bailey & Gatrell (1995). Interactive Spatial Data Analysis. Longman Scientific and Technical, Harlow. A more extensive set of data is analysed in Kelsall & Diggle, kernel estimation of relative risk, Bernoulli 1, 3-16.
}
\keyword{smooth}
\keyword{regression}
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