\HeaderA{Cushings}{Diagnostic Tests on Patients with Cushing's Syndrome}{Cushings}
\keyword{datasets}{Cushings}
\begin{Description}\relax
Cushing's syndrome is a hypertensive disorder associated with
over-secretion of cortisol by the adrenal gland. The observations
are urinary excretion rates of two steroid metabolites.
\end{Description}
\begin{Usage}
\begin{verbatim}
Cushings
\end{verbatim}
\end{Usage}
\begin{Format}\relax
The \code{Cushings} data frame has 27 rows and 3 columns:
\describe{
\item[\code{Tetrahydrocortisone}] urinary excretion rate (mg/24hr) of Tetrahydrocortisone.

\item[\code{Pregnanetriol}] urinary excretion rate (mg/24hr) of  Pregnanetriol.

\item[\code{Type}] underlying type of syndrome, coded \code{a} (adenoma) , \code{b}
(bilateral hyperplasia), \code{c} (carcinoma) or \code{u} for unknown.
}
\end{Format}
\begin{Source}\relax
J. Aitchison and I. R. Dunsmore (1975)
\emph{Statistical Prediction Analysis.}
Cambridge University Press, Tables 11.1--3.
\end{Source}
\begin{References}\relax
Venables, W. N. and Ripley, B. D. (2002)
\emph{Modern Applied Statistics with S.} Fourth edition.  Springer.
\end{References}