#' ---
#' title: Exercise n.
#' subtitle:
#' author: name.surname
#' date:
#' output:
#'    html_document:
#'      toc: true
#' ---



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#' # How to load data available in R
library(MASS)
data("Pima.tr")
#' ## Structure of data
str(Pima.tr)
#' The Pima.tr data have 200 observations and 8 variables