R/otters.R

In SDAResources: Datasets and Functions for 'Sampling: Design and Analysis, 3rd Edition'

#' otters data
#'
#' 
#' Data on number of holts (dens) in Shetland, U.K., used in Kruuk et al. (1989).
#'Data courtesy of Hans Kruuk.
#'
#'
#' @format This data frame contains the following columns:
#' 
#' \describe{
#' \item{section:}{section of coastline}
#' 
#' \item{habitat:}{type of habitat (stratum)}
#' 
#'\item{holts:}{number of holts (dens)}
#'}
#'  
#'  
#'  
#'
#' @docType data
#'
#' @usage data(otters)
#'
#'
#'
#' @keywords datasets
#' 
#'@references Kruuk et al. (1989) An estimate of numbers and habitat preferences of otters Lutra lutra in Shetland, UK. \emph{Biological
#' Conservation 49}, 241–254.
#'
#' @references Lohr (2021), Sampling: Design and Analysis, 3rd Edition. Boca Raton, FL: CRC Press.
#' 
#'@references Lu and Lohr (2021), R Companion for \emph{Sampling: Design and Analysis, 3rd Edition}, 1st Edition. Boca Raton, FL: CRC Press.
#' 
#'
#' 
#' 
#' 
"otters"