R/CostTransport.R

In pik-piam/magpie4: MAgPIE outputs R package for MAgPIE version 4.x

#' @title CostTransport
#' @description reads costs entering the objective function from a MAgPIE gdx file
#'
#' @export
#'
#' @param gdx GDX file
#' @param file a file name the output should be written to using write.magpie
#' @param level Level of regional aggregation; "reg" (regional), "glo" (global), "regglo" (regional and global) or any other aggregation level defined in superAggregate
#' @param sum total costs (TRUE) or detailed costs (FALSE)
#' @return A MAgPIE object containing the transport costs [million US$17]
#' @author David Chen
#' @importFrom magclass dimSums
#' @importFrom luscale superAggregate
#' @examples
#'
#'   \dontrun{
#'     x <- CostTransport(gdx)
#'   }
#'

CostTransport <- function(gdx,file=NULL,level="cell",sum=FALSE){

  #delete Mainsolve also in magpie4 costs
  transport <-readGDX(gdx,"ov_cost_transp",react="silent",format="first_found", select = list(type="level"))

  if (sum){
    transport <- dimSums(transport,dim=3.1)
    dimnames(transport)[[3]] <- "Transport"
  }

  if (level != "cell") transport <- superAggregate(transport, aggr_type = "sum", level = level)


  out(transport,file)
}