R/nybight.R

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

#' nybight data
#'
#' 
#' Data collected in the New York Bight for June 1974 and June 1975. Two of the
#'original strata were combined because of insufficient sample sizes. For variable "catchwt",
#'weights less than 0.5 were recorded as 0.5 kg. 
#'
#'Missing values are coded as NA.
#'
#'
#' @format This data frame contains the following columns:
#' \describe{
#' \item{year:}{year of data collection, 1974 or 1975}
#' 
#' \item{stratum:}{stratum membership, based on depth}
#' 
#' \item{catchnum:}{number of fish caught during trawl}
#' 
#' \item{catchwt:}{total weight (kg) of fish caught during trawl}
#' 
#' \item{numspp:}{number of species of fish caught during trawl}
#' 
#' \item{depth:}{depth of station (m)}
#' 
#' \item{temp:}{surface temperature (degrees \eqn{^{\circ}}C)}
#' } 
#'  
#'  
#'
#' @docType data
#'
#' @usage data(nybight)
#'
#'
#'
#' @keywords datasets
#' 
#'@references Wilk et al. (1977). Fishes and Associated
#' Environmental Data Collected in New York Bight, June 1974–June 1975. \emph{NOAA Tech.
#' Rep. No. NMFS SSRF-716.} Washington, DC: U.S. Government Printing Office.
#'
#' @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.
#' 
#'
#' 
#' 
#' 
"nybight"