#'
#' @param err Error as returned by \code{computeError()}
#' @param cols Colors for each error (default: 1,2,3,...)
+#' @param agg Aggregation level ("day", "week" or "month")
#'
#' @seealso \code{\link{plotCurves}}, \code{\link{plotPredReal}},
#' \code{\link{plotSimils}}, \code{\link{plotFbox}}, \code{\link{computeFilaments}},