R/jejunalcrypt.R

In trobinj/trtools: Miscellaneous Tools for Teaching Statistics

#' Effect of radiation on jejunal crypts in rats. 
#'
#' Data from an experiment where mice were exposed to a single dose of radiation. The mice were then sacrificed and the number of surviving jejunal crypts (intestinal glands in the small intestine) were counted.
#'
#' @format A data frame with 126 observations on two variables:
#' \describe{
#'    \item{dose:}{dose of radiation in Gy (gray)}
#'    \item{crypts:}{number of surviving jejunal crypts}
#' }
#'
#' @source Kim, D. K. & Taylor, J. M. G. (1994). Transform-both-sides approach for overdispersed binomial data when N is unobserved. \emph{Journal of the American Statisical Association}, \emph{89}, 833-845.
#' 
#' Faddy, M. J. & Smith, D. M. (2011). Analysis of count data with covariate dependence in both mean and variance. \emph{Journal of Applied Statistics}, \emph{38}, 2683-2694.
"jejunalcrypt"