R/diglyme.R

In trobinj/trtools: Miscellaneous Tools for Teaching Statistics

#' Toxicity of diethylene glycol dimethyl ether.
#'
#' Data from an experiment where pregnant mice were exposed to varying concentrations of diethylene glycol dimethyl ether (diglyme) for ten days. Two days later the mice fetuses were examined and classified as dead, malformation, or normal. 
#'
#' @format A data frame of 5 observations on four variables.
#' \describe{
#'    \item{concentration:}{concentration of diethylene glycol dimethyl ether (mg/kg per day)}
#'    \item{dead:}{number of dead fetuses}
#'    \item{malformation:}{number of malformed fetuses}
#'    \item{normal:}{number of normal fetuses}
#' }
#' 
#' @note Agresti notes that the observations are not necessarily independent. Some dependencies may exist among observations of fetuses from the same litter. 
#'
#' @source Price, C. J., Kimmel, C. A., George, J. D., & Marr, M. C. (1987). The developmental toxicity study of diethylene glycol dimethyl ether in mice. \emph{Fundamental and Applied Toxicology}, \emph{8}, 115--126. The data were also featured in Categorical Data Analysis by Agresti.
#' 
"diglyme"