R/ex_flow.R

In halfcircle: Plot Halfcircle Diagram

#' Traded volume of land between countries
#'
#' A dataset containing trade data between countries and traded volumes for each 4 category.
#'
#' @format A data frame with 10866 rows and 6 variables:
#' \describe{
#'   \item{O}{name of exporting country}
#'   \item{D}{name of importing country}
#'   \item{vegetable}{volume of land associated with trading vegetables, in ha}
#'   \item{fruit}{volume of land associated with trading fruits, in ha}
#'   \item{wheat}{volume of land associated with trading wheats, in ha}
#'   \item{soybean}{volume of land associated with trading soybeans, in ha}
#' }
#' @docType data
#' @source \url{http://fao.org/faostat/}
#' @usage data(ex_flow)
"ex_flow"