stat340: Data and functions for BIAS at NMBU

#' STAT210prob2.36: Shear Strength of Steel Girder
#'
#' An article in the \emph{Journal of Strain Analysis} (vol. 18 no. 2, 1983)
#' compares several procedures for predicting the shear strength for steel plate
#' girders. This data shows nine girders in the form of the ratio of predicted
#' to observed load for two of these procedures, the Karlsruhe and Lehigh
#' methods.
#'
#' @format A data frame with 9 observations (rows) and 3 variables (columns).
#' \tabular{llllr}{
#'   \tab \bold{Column name} \tab \bold{Data type} \tab \bold{Description} \tab \bold{Values}\cr
#'   \code{[,1]} \tab \code{Karlsruhe} \tab numeric \tab Ratio with the Karlsruhe method \tab (1.151 - 1.559)\cr
#'   \code{[,2]} \tab \code{Lehigh} \tab numeric \tab Ratio with the Lehigh method \tab (0.992 - 1.178)\cr
#'   \code{[,3]} \tab \code{Difference} \tab numeric \tab Difference between the methods \tab (0.125 - 0.507)
#' }
#'
#' @details
#'
#' This is data from Exercise 2.36 in Design and Analysis of Experiments, 9th
#' Edition, EMEA Edition.
#'
#' @examples
#'
#' # A summary of the variables
#' summary(STAT210prob2.36)
#'
#' # Obtain the difference between the methods
#' STAT210prob2.36$Karlsruhe - STAT210prob2.36$Lehigh
#'
#' @source Montgomery, D. C. (2019) \emph{Design and Analysis of Experiments,
#' 9th Edition, EMEA Edition}. New York: Wiley.
#'
#' @docType data
#' @keywords datasets
#' @name STAT210prob2.36
#' @usage STAT210prob2.36
#'
"STAT210prob2.36"