#' @title Ages of Morwong assigned from otoliths by Reader A at two times.
#'
#' @description Ages assigned at two different times by Reader A to the otoliths of Jackass Morwong (\emph{Nemadactylus macropterus}).
#'
#' @name Morwong1
#'
#' @docType data
#'
#' @format A data frame with 217 paired observations on the following 2 variables.
#' \describe{
#' \item{first}{Ages assigned on the first reading}
#' \item{second}{Ages assigned on the second reading}
#' }
#'
#' @section Topic(s):
#' \itemize{
#' \item Age Comparison
#' \item Age Precision
#' \item Age Bias
#' \item Ageing Error
#' }
#'
#' @concept Age Precision
#' @concept Age Bias
#' @concept Age Comparison
#'
#' @source From Table 5 of Restall, J.E., and K. Krusic-Golub. 2004. Development of jackass morwong age-length keys for 2000-2002. Final report to Australian Fisheries Management Authority. 13 pp. Primary Industries Research Victoria, Queenscliff. \href{https://raw.githubusercontent.com/fishR-Core-Team/FSAdata/main/data-raw/Morwong1.csv}{CSV file}
#'
#' @keywords datasets
#'
#' @examples
#' data(Morwong1)
#' str(Morwong1)
#' head(Morwong1)
#' plot(second~first,data=Morwong1)
#' xtabs(~first+second,data=Morwong1)
#'
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