R/zips.R

In ggmap: Spatial Visualization with ggplot2

#' Zip code data for the Greater Houston Metropolitan Area from the
#' 2000 census
#'
#' @name zips
#' @docType data
#' @author U.S. Census Bureau, Geography Division, Cartographic
#'   Products Management Branch
#' @references Downloaded from
#'   http://www.census.gov/geo/www/cob/z52000.html (now defunct).
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