DataRZ: Useful Datasets

#' Test of 9 different detergents
#'
#' Test of 9 different detergents.  There are three basins that are used simultaneously at the same rate with a different detergent in each basin.  Response is number of plates until foam disappears in a basin. Column 1 is session. Column 2 is treatment (kind of detergen).  Column 3 is response (number of dishes). Treatments 1-4 are detergent base 1 with (3, 2, 1, or 0) parts additive.  Treatments 5-8 are detergent base 2 with (3, 2, 1, or 0) parts additive.  Treatment 9 is a control.\cr
#'
#' For more information see Oehlert (2000) "First Course in Design and Analysis of Experiments".
#'
#' Data originally from John P. W. M. (1961) "An application of a balanced incomplete block design" Technometrics.
#'
#' @docType data
#'
#' @usage data(dish)
#'
#' @format An object of class \code{data.frame}
#'
#' @keywords datasets
#'
#' @examples
#' data(dish)
"dish"