R/ratdiet.R

In trobinj/trtools: Miscellaneous Tools for Teaching Statistics

#' Effect of a restricted diet on lifespan of rats.  
#'
#' Data from an experiment investigating the effect of a restricted versus an unrestricted diet on the lifespan of rats. 
#'
#' @format A data frame with 195 observations and two variables:
#' \describe{
#'    \item{days:}{lifespan (days)}
#'    \item{restricted:}{diet restricted (yes or no)}
#' }
#'
#' @source Berger, R. L., Boos, D. D., & Guess, F. M. (1988). Tests and confidence sets for comparing two mean residual life functions. \emph{Biometrics}, \emph{44}, 103--115. 
#' 
#' Yu, B. P., Masoro, E. J., Murata, I., Bertrand, H. A., & Lynd, F. T. (1982). Lifespan study of SPF Fisher 344 male rats fed ad libitum or restricted diets: Longevity, growth, and lean body mass and disease. \emph{Journal of Gerontology}, \emph{37}, 130-141.
"ratdiet"