#'
#' @param data Dataset, object of class \code{Data} output of \code{getData}
#' @param pred Forecast object, class \code{Forecast} output of \code{computeForecast}
-#' @param horizon Horizon where to compute the error (<= horizon used in \code{computeForecast})
+#' @param horizon Horizon where to compute the error
+#' (<= horizon used in \code{computeForecast})
#'
#' @return A list (abs,MAPE) of lists (day,indices)
#'