% Generated by roxygen2: do not edit by hand
% Please edit documentation in R/data-flea.R
\docType{data}
\name{flea}
\alias{flea}
\title{Historical data used for classification examples.}
\format{
A data frame with 74 rows and 7 variables
}
\usage{
data(flea)
}
\description{
This data contains physical measurements on three species of flea beetles.
}
\details{
\itemize{
\item species Ch. concinna, Ch. heptapotamica, Ch. heikertingeri
\item tars1 width of the first joint of the first tarsus in microns
\item tars2 width of the second joint of the first tarsus in microns
\item head the maximal width of the head between the external edges of the eyes in 0.01 mm
\item aede1 the maximal width of the aedeagus in the fore-part in microns
\item aede2 the front angle of the aedeagus (1 unit = 7.5 degrees)
\item aede3 the aedeagus width from the side in microns
}
}
\references{
Lubischew, A. A. (1962), On the Use of Discriminant Functions in
Taxonomy, Biometrics 18:455-477.
}
\keyword{datasets}
