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\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 ofcross-fertilized plants over self-fertilized plants. 15 pairs of plantswere used. Each pair consisted of one cross-fertilized plant and oneself-fertilized plant which germinated at the same time and grew in thesame pot. The plants were measured at a fixed time after planting andthe difference in heights between the cross- and self-fertilized plants arerecorded 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 fromFisher, 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.