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#' @title Iris Data
#'
#' @description The Iris dataset is consists of 4 variables, 3 groups and 150 observations.
#' The last column of the data is Iris species.
#' @docType data
#' @keywords datasets
#' @name iris
#' @usage iris
#' @format A data frame with 150 rows and 5 columns. The columns
#' are as follows:
#' \describe{
#' \item{Sepal.Length}{The Sepal length values of iris flowers}
#' \item{Sepal.Width}{The Sepal width values of iris flowers}
#' \item{Petal.Length}{The Petal length values of iris flowers}
#' \item{Petal.Width}{The Petal width values of iris flowers}
#' \item{Species}{The species of iris flowers}
#' }
#'
#' @source https://archive.ics.uci.edu/ml/datasets/Iris
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