R/agstrat.R

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

#' agstrat data
#'
#' 
#' Data from a stratified random sample of size 300 from the 1992 U.S. Census of Agriculture \emph{agpop} data.
#'
#'
#' @format This data frame contains the following columns:
#' 
#'\describe{
#' \item{county:}{county name (character variable)}
#' 
#' \item{state:}{state abbreviation (character variable)}
#' 
#' \item{acres92:}{number of acres devoted to farms, 1992}
#' 
#' \item{acres87:}{number of acres devoted to farms, 1987}
#' 
#' 
#'\item{acres82:}{number of acres devoted to farms, 1982}
#' 
#' \item{farms92:}{number of farms, 1992}
#' 
#' \item{farms87:}{number of farms, 1987}
#' 
#' \item{farms82:}{number of farms, 1982}
#' 
#' \item{largef92:}{number of farms with 1,000 acres or more, 1992}
#' 
#' \item{largef87:}{number of farms with 1,000 acres or more, 1987}
#' 
#' \item{largef82:}{number of farms with 1,000 acres or more, 1982}
#' 
#' \item{smallf92:}{number of farms with 9 acres or fewer, 1992}
#' 
#' \item{smallf87:}{number of farms with 9 acres or fewer, 1987}
#' 
#' 
#'\item{smallf82:}{number of farms with 9 acres or fewer, 1982}
#' 
#' \item{region:}{S = south; W = west; NC = north central; NE = northeast}
#' 
#'\item{rn:}{random numbers used to select sample in each stratum} 
#'  
#'\item{strwt:}{sampling weight for each county in sample}
#'}
#'
#' @docType data
#'
#' @usage data(agstrat)
#'
#'
#'
#' @keywords datasets
#'
#' @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.
#'  
#'
#' 
#'
#' 
#' 
#' 
"agstrat"