R/fulmarin.R

In CajoterBraak/Gendis2unmix: Calculates a generalized discriminant function to unmix two classes, typically sexes of birds

#' @title Fulmarin petrels data
#'

#' @description The dataframe \code{fulmarin} contains measurements on Fulmarine petrels
#' with sex known from dissection or, for Snow Petrels, observation. The variables are as follows:
#'
#' \itemize{
#' \item\code{population}  study site ID (integer)
#' \itemize{
#' \item\code{1} Northern Fulmar (Fulmarus glacialis), the Netherlands
#'  \item\code{2} Northern Fulmar (Fulmarus glacialis), Jan Mayen
#'  \item\code{3} Southern Fulmar (Fulmarus glacialoides), Ardery Island Antarctica
#'  \item\code{4} Cape Petrel (Daption capense), Ardery Island Antarctica
#'  \item\code{5} Antarctic Petrel (Thalassoica antarctica), Ardery Island, Antarctica
#'  \item\code{6} Snow Petrel (Pagodroma nivea), Casey Station, Antarctica
#' }
#' \item\code{sex} 0 is female; 1 is male
#' \item\code{HB} Head Length (mm)
#' \item\code{BD2} Bill Depth at gonys (mm)
#' \item\code{TL} Tarsus Length (mm)
#' \item\code{CL} Culmen Length (mm).
#' }
#' @name fulmarin
#' @docType data
#' @author Jan Andries van Franeker (\email{jan.vanfraneker@wur.nl})
#' @references van Franeker, J A. ter Braak, C J F. 1993.
#' A generalized discriminant for sexing fulmarine petrels from
#' external measurements. The Auk 110: pp 492-502, https://doi.org/10.2307/4088413 https://edepot.wur.nl/249350
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