stat340: Data and functions for BIAS at NMBU

#' FishData: Yield of Salmon and Sea Trout
#'
#' This is real data of fish yield for the two species salmon and sea trout
#' registered in 6 different rivers in south-eastern Norway for the period
#' 2003 - 2008. The 6 rivers are randomly sampled from the population of
#' Norwegian rivers.
#'
#' @format A data frame with 72 observations (rows) and 4 variables (columns).
#'
#' \tabular{llllr}{
#'   \tab \bold{Column name} \tab \bold{Data type} \tab \bold{Description} \tab \bold{Values}\cr
#'   \code{[,1]} \tab \code{River} \tab character \tab Observations from 6 rivers \tab ("Numedalslaagen"..."Storelva i Lebesby")\cr
#'   \code{[,2]} \tab \code{Species} \tab character \tab 2 types of fish \tab ("Salmon", "Sea trout")\cr
#'   \code{[,3]} \tab \code{Year} \tab integer \tab Observations from 6 years \tab (2003 - 2008)\cr
#'   \code{[,4]} \tab \code{Yield} \tab integer \tab Total yield in kg per year \tab (14 - 18989)
#' }
#'
#' @details
#'
#' This data was used in the Exam STAT210 H22.
#'
#' @examples
#'
#' # A short summary of the variables
#' summary(FishData)
#'
#' # Encode Species as factor and check the levels
#' FishData$Species <- as.factor(FishData$Species)
#' unique(FishData$Species)
#'
#' @source
#'
#' This data is a subset of real data from
#' \href{https://www.ssb.no/jord-skog-jakt-og-fiskeri/fiske-og-fangst/statistikk/elvefiske}{"Elvefiske"}, a database from
#' Statistics Norway (Statistisk sentralbyrå).
#'
#' @docType data
#' @keywords datasets
#' @name FishData
#' @usage FishData
#'
"FishData"