R/frijol.R

In myaseen208/agricolae: Statistical Procedures for Agricultural Research

#' @title Data of frijol
#' @name   frijol
#' @docType data
#' @keywords datasets
#' @usage data(frijol)
#' @description
#' Data of frijol under 4 technologies for the homogeneity of regression study.
#' Yield of Frijol in kg/ha in clean and dry grain.
#' 
#' Tecnnologies: 20-40-20 kg/ha.  N. P2O5 and K2O + 2 t/ha of gallinaza.
#' 40-80-40 kg/ha.  N. P2O5 and K2O + 2 t/ha of gallinaza.  60-120-60 kg/ha. N.
#' P2O5 and K2O + 2 t/ha of gallinaza.  40-80-40 kg/ha.  N. P2O5 and K2O + 4
#' t/ha of gallinaza.
#' 
#' @format 
#' A \code{data.frame} with 84 observations on the following 3 variables.
#' 
#'  @details
#'         \itemize{
#'         \item{\strong{technology}} a factor with levels \code{a}, \code{b}, \code{c}, and \code{d}
#'         \item{\strong{production}} production
#'         \item{\strong{index}} index
#'         }
#'         
#' @references 
#' Oriente antioqueno (1972) (ICA.- Orlando Martinez W.) Colombia.
#' 
#' @keywords datasets
#' @examples
#' 
#' library(agricolae)
#' data(frijol)
#' str(frijol)
#' 
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