R/banknotes.R

In MAS3907: The MAS3907 package.

#' Banknote authentication data.
#'
#' Data extracted from images taken from genuine and forged banknotes, digitized into
#' 400 x 400 arrays of pixels, and then summarised into four continuously valued
#' summary statistics. For each banknote, the data set records whether
#' the banknote was genuine or forged, along with the four numerical summaries of the image.
#'
#' @name banknotes
#' @docType data
#' @usage data(banknotes)
#' @return A data frame with 1372 rows and 5 variables. The data frame contains
#' the following columns:
#' \describe{
#' \item{variance}{Variance of Wavelet Transformed image.}
#' \item{skewness}{Skewness of Wavelet Transformed image.}
#' \item{kurtosis}{Kurtosis of Wavelet Transformed image.}
#' \item{entropy}{Entropy of image.}
#' \item{class}{A factor with two levels, \code{0} and \code{1}, which refer to whether
#' the banknote was a forgery or real.}}
#' @source The data were taken from the UCI Machine Learning Repository:
#' \url{https://archive.ics.uci.edu/ml/datasets/banknote+authentication}.
#' @keywords datasets
#' @examples
#' data(banknotes)
#' head(banknotes)
NULL