#' Crunching of Oncology Data
#'
#' The subsequent columns describe:
#' \itemize{
#' \item Wiek age
#' \item Rozmiar.guza cancer size
#' \item Wezly.chlonne lymph nodes
#' \item Nowotwor cancer
#' \item Receptory.estrogenowe estrogen receptors
#' \item Receptory.progesteronowe progesteron receptors
#' \item Niepowodzenia failures
#' \item Okres.bez.wznowy time of observation
#' \item VEGF vascular endothelial growth factor
#' }
#'
#' @docType data
#' @keywords datasets
#' @name daneO
#' @examples
#' library("Przewodnik")
#' summary(daneO)
#' @usage data(daneO)
#' @format a data.frame with 97 rows and 9 columns
#'
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