\name{darwin}
\alias{darwin}
\title{
Darwin's Plant Height Differences
}
\description{
The \code{darwin} data frame has 15 rows and 1 columns.


Charles Darwin conducted an experiment to examine the superiority of
cross-fertilized plants over self-fertilized plants.  15 pairs of plants
were used. Each pair consisted of one cross-fertilized plant and one
self-fertilized plant which germinated at the same time and grew in the
same pot. The plants were measured at a fixed time after planting and
the difference in heights between the cross- and self-fertilized plants are
recorded in eighths of an inch.
}
\usage{
darwin
}
\format{
This data frame contains the following column:


\describe{
\item{\code{y}}{
The difference in heights for the pairs of plants (in units of 0.125 inches).
}}}
\source{
The data were obtained from


Fisher, R.A. (1935) \emph{Design of Experiments}. Oliver and Boyd.
}
\references{
Darwin, C. (1876) 
\emph{The Effects of Cross- and Self-fertilisation in the Vegetable Kingdom}. 
John Murray.


Davison, A.C. and Hinkley, D.V. (1997) 
\emph{Bootstrap Methods and Their Application}. Cambridge University Press.
}
\keyword{datasets}
% Converted by Sd2Rd version 1.15.