R/statepps.R

In SDaA: Sampling: Design and Analysis

#' Information on States
#' 
#' Number of counties, land area, and population for the 50 states plus
#' the District of Columbia
#' @name statepps
#' @docType data
#' @format Date frame with the following 7 variables:
#' \describe{
#'   \item{state}{state name}
#'   \item{counties}{number of counties in state}
#'   \item{cumcount}{cumulative number of counties}
#'   \item{landarea}{land area of state, 1990 (square miles)}
#'   \item{cumland}{cumulative land area}
#'   \item{popn}{population of state, 1992}
#'   \item{cumpopn}{cumulative population}
#' }
#' @references Lohr (1999). Sampling: Design and Analysis, Duxbury, p. TODO and
#'   445.
#' @export
NULL