#' Effects of nitrogen fertiliser on yields of varieties of rice
#'
#' The Rice dataset contains data from an experiment that studied
#' the effect of three levels of nitrogen fertilizer on the yields
#' of six varieties of rice. The experiment used a strip-plot design.
#' This is a replicated row and column design. Each replicate had three
#' columns and six rows. Within each replicate, the nitrogen levels
#' were randomized onto the columns, and the varieties were
#' randomized onto the rows.The response variable is the yield of rice.
#'
#' @format
#' \describe{A data frame with 54 observations on the following six variables:
#' \item{Rep}{a factor specifying the replicate to which each plot belonged.}
#' \item{Row}{a factor specifying its row.}
#' \item{Column}{a factor specifying its column.}
#' \item{Variety}{a factor specifying the variety grown on each plot.}
#' \item{Nitrogen}{a factor specifying the amount of nitrogen fertiliser that was applied.}
#' \item{Yield}{a numerical vector recording the yields.}
#' }
#'
#' @source
#' Gomez, K.A. & Gomez, A.A. (1984) Statistical Procedures for Agricultural Research, page 110.
#'
#' @examples
#'
"rice"
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