R/CodNorwegian.R

In droglenc/FSA: Simple Fisheries Stock Assessment Methods

#' @title Stock and recruitment data for Norwegian cod, 1937-1960.
#'
#' @description Norwegian cod (\emph{Gadus morhua}) stock and recruitment by year, 1937-1960.
#'
#' @name CodNorwegian
#' 
#' @docType data
#' 
#' @format A data frame of 24 observations on the following 3 variables:
#'  \describe{
#'    \item{year}{Year of data}
#'    \item{recruits}{Recruits -- year-class strength index}
#'    \item{stock}{Spawning stock index}
#'  }
#' 
#' @section Topic(s):
#'  \itemize{
#'    \item Stock-Recruit
#'    \item Recruitment
#'  }
#' 
#' @concept Stock-Recruit
#' @concept Recruitment
#' 
#' @source From Garrod, D.J. 1967. Population dynamics of the Arcto-Norwegian Cod. Journal of the Fisheries Research Board of Canada, 24:145-190. \href{https://raw.githubusercontent.com/fishR-Core-Team/FSA/master/data-raw/CodNorwegian.csv}{CSV file}
#' 
#' @seealso Used in \code{\link{srStarts}}, \code{\link{srFuns}}, and \code{\link{nlsTracePlot}} examples.
#' 
#' @keywords datasets
#' 
#' @examples
#' str(CodNorwegian)
#' head(CodNorwegian)
#' op <- par(mfrow=c(1,2),pch=19,mar=c(3,3,0.5,0.5),mgp=c(1.9,0.5,0),tcl=-0.2)
#' plot(recruits~year,data=CodNorwegian,type="l")
#' plot(recruits~stock,data=CodNorwegian)
#' par(op)
#'
NULL