R/zaporozec.R

In hydrogeo: Groundwater Data Presentation and Interpretation

#' Major ions for groundwaters reported by Zaporozec
#' 
#' This data set contains major ion analyses for three groundwaters.
#' @format A data frame with 9 observations on the following 15 variables:
#'  \itemize{
#'    \item \code{location} a factor with levels \code{Tertiary, Czechoslovakia} \code{Upper Cambrian, Wisconsin} \code{Upper Cretaceous, Czechoslovakia}
#'    \item \code{K} a numeric vector - potassium
#'    \item \code{Mg} a numeric vector - magnesium
#'    \item \code{Ca} a numeric vector - calcium
#'    \item \code{Mn} a numeric vector - magnesium
#'    \item \code{Fe} a numeric vector - iron
#'    \item \code{Cl} a numeric vector - chloride
#'    \item \code{NO3} a numeric vector - nitrate
#'    \item \code{HCO3} a numeric vector - bicarbonate
#'    \item \code{SO4} a numeric vector - sulphate
#'    \item \code{sigma} a numeric vector - standard deviation
#'    \item \code{TDS} a numeric vector - total dissolved solids
#'    \item \code{tempC} a numeric vector - temperature
#'    \item \code{pH} a numeric vector - pH
#'    \item \code{units} a factor with levels \code{meq/l} \code{meq_pc} \code{mg/l}}
#' @source Zaporozec, ``Graphical interpretation of water quality data,'' \emph{Ground Water} 10, no. 2 (1972): pages 32--43.
#' @examples
#' data(zaporozec)
#' str(zaporozec)
#' @docType data
#' @name zaporozec
#' @keywords datasets
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