R/WalleyeMN06a.R

In FSAdata: Data to Support Fish Stock Assessment ('FSA') Package

#' @title Catch-at-age for Walleye.
#' 
#' @description Catch-at-age for Walleye (\emph{Sander vitreus}) collected from four lakes in Northern Minnesota, USA.
#' 
#' @name WalleyeMN06a
#' 
#' @docType data
#' 
#' @format A data frame with 52 observations on the following 3 variables.
#'  \describe{
#'    \item{lake}{A factor vector of collection lake (\code{Crooked}, \code{Fourmile}, \code{Island}, \code{Tom})}
#'    \item{age}{A numeric vector of assigned ages (from dorsal spines)}
#'    \item{number}{A numeric vector of number of fish}
#'  }
#'  
#' @section Topic(s):
#'  \itemize{
#'    \item Mortality 
#'    \item Catch curve
#'  }
#'  
#' @concept Mortality
#' @concept Catch Curve
#' 
#' @source From various tables in Borkholder, B.D., A.J. Edwards, and C. Olson. 2007. Spring adult and fall juvenile walleye population surveys within the 1854 ceded territory of Minnesota, 2006. Fond du Lac Division of Resource Management, Technical Report 41. \href{https://raw.githubusercontent.com/fishR-Core-Team/FSAdata/main/data-raw/WalleyeMN06a.csv}{CSV file}
#' 
#' @keywords datasets
#' 
#' @examples
#' data(WalleyeMN06a)
#' str(WalleyeMN06a)
#' head(WalleyeMN06a)
#' op <- par(mfrow=c(2,2),pch=19)
#' plot(log(number)~age,data=WalleyeMN06a,subset=lake=="Crooked")
#' plot(log(number)~age,data=WalleyeMN06a,subset=lake=="Fourmile")
#' plot(log(number)~age,data=WalleyeMN06a,subset=lake=="Island")
#' plot(log(number)~age,data=WalleyeMN06a,subset=lake=="Tom")
#' par(op)
#' 
NULL