\HeaderA{crabs}{Morphological Measurements on Leptograpsus Crabs}{crabs}
\keyword{datasets}{crabs}
\begin{Description}\relax
The \code{crabs} data frame has 200 rows and 8 columns, describing 5 morphological
measurements on 50 crabs each of two colour forms and both sexes, of the
species
\emph{Leptograpsus variegatus}
collected at Fremantle, W. Australia.
\end{Description}
\begin{Usage}
\begin{verbatim}
crabs
\end{verbatim}
\end{Usage}
\begin{Format}\relax
This data frame contains the following columns:
\describe{
\item[\code{sp}] \code{species} - \code{"B"} or \code{"O"} for blue or orange

\item[\code{sex}] as it says

\item[\code{index}] index 1:50 within each of the four groups

\item[\code{FL}] frontal lobe size (mm)

\item[\code{RW}] rear width (mm)

\item[\code{CL}] carapace length (mm)

\item[\code{CW}] carapace width (mm)

\item[\code{BD}] body depth (mm)
}
\end{Format}
\begin{Source}\relax
Campbell, N.A. and Mahon, R.J. (1974) A multivariate
study of variation in two species of rock crab of genus
\emph{Leptograpsus.}
\emph{Australian Journal of  Zoology}
\bold{22}, 417--425.
\end{Source}
\begin{References}\relax
Venables, W. N. and Ripley, B. D. (2002)
\emph{Modern Applied Statistics with S.} Fourth edition.  Springer.
\end{References}

