R/WalleyeErie2.R

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

#' @title Biological data for Walleye from Lake Erie, 2003-2014.
#' 
#' @description Walleye (\emph{Sander vitreus}) biological data (length, weight, sex, maturity, and age) from several locations in Lake Erie, October-November of 2003-2014.
#' 
#' @name WalleyeErie2
#' 
#' @docType data
#' 
#' @format A data frame of 33734 observations on the following 10 variables:
#' \describe{
#'  \item{setID}{Unique gear (multifilament gill net kegged 6 ft below surface) set identification number.} 
#'  \item{loc}{Regional location (\code{1}=Toledo to Huron, \code{2}=Huron to Fairport Harbor, \code{3}=Fairport Harbor to Conneaut).} 
#'  \item{grid}{2.5-minute sampling grid location.}
#'  \item{year}{Year of data.}
#'  \item{tl}{Total length (mm).}
#'  \item{w}{Weight (g). There are several missing values.}
#'  \item{sex}{Sex (female, male).}
#'  \item{mat}{Maturity (immature, mature).}
#'  \item{age}{Age (yrs) from otoliths.}
#' }
#' 
#' @section Topic(s):
#'  \itemize{
#'   \item Growth
#'   \item von Bertalanffy
#'   \item Weight-Length
#'   \item Catch curve
#'   \item Mortality
#'   \item Maturity
#'   \item Size Structure
#'   \item Length Frequency
#'   \item Condition
#'  }
#' 
#' @concept Growth
#' @concept Weight-Length
#' @concept Catch curve
#' @concept Mortality
#' @concept Maturity
#' @concept Size Structure
#' @concept Condition
#' @concept Length Frequency
#' 
#' @source These unpublished data are from the Ohio Department of Natural Resources, Division of Wildlife (via Christopher Vandergoot). \bold{Do not use for other than educational purposes without permission from the source.} \href{https://raw.githubusercontent.com/fishR-Core-Team/FSAdata/main/data-raw/WalleyeErie2.csv}{CSV file}
#' 
#' @keywords datasets
#' 
#' @examples
#' data(WalleyeErie2)
#' str(WalleyeErie2)
#' head(WalleyeErie2)
#' xtabs(~year+loc+sex,data=WalleyeErie2)
#' 
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