R/data-cancer_in_dogs.R

In OpenIntroStat/openintro-r-package: Data Sets and Supplemental Functions from 'OpenIntro' Textbooks and Labs

#' Cancer in dogs
#'
#' A study in 1994 examined 491 dogs that had developed cancer and 945 dogs as
#' a control group to determine whether there is an increased risk of cancer in
#' dogs that are exposed to the herbicide 2,4-Dichlorophenoxyacetic acid
#' (2,4-D).
#'
#'
#' @name cancer_in_dogs
#' @docType data
#' @format A data frame with 1436 observations on the following 2 variables.
#' \describe{
#'   \item{order}{a factor with levels \code{2,4-D} and \code{no 2,4-D}}
#'   \item{response}{a factor with levels \code{cancer} and \code{no cancer}}
#'   }
#' @source Hayes HM, Tarone RE, Cantor KP, Jessen CR, McCurnin DM, and
#' Richardson RC. 1991. Case- Control Study of Canine Malignant Lymphoma:
#' Positive Association With Dog Owner's Use of 2, 4- Dichlorophenoxyacetic
#' Acid Herbicides. Journal of the National Cancer Institute 83(17):1226-1231.
#' @keywords datasets
#' @examples
#'
#' table(cancer_in_dogs)
"cancer_in_dogs"