\Header{survival}{Survival of Rats after Radiation Doses}
\keyword{datasets}{survival}
\begin{Description}\relax
The \code{survival} data frame has 14 rows and 2 columns.


The data measured the survival percentages of batches of rats who were given 
varying doses of radiation.  At each of 6 doses there were two or three
replications of the experiment.
\end{Description}
\begin{Usage}
\begin{verbatim}
data(survival)
\end{verbatim}
\end{Usage}
\begin{Format}\relax
This data frame contains the following columns:


\describe{
\item[\code{dose}] The dose of radiation administered (rads).

\item[\code{surv}] The survival rate of the batches expressed as a percentage.
}
\end{Format}
\begin{Source}\relax
The data were obtained from


Efron, B. (1988) Computer-intensive methods in statistical regression.
\emph{SIAM Review}, \bold{30}, 421--449.
\end{Source}
\begin{References}\relax
Davison, A.C. and Hinkley, D.V. (1997) 
\emph{Bootstrap Methods and Their Application}. Cambridge University Press.
\end{References}

