#' Zero Forecaster
#'
-#' Flat prediction of next series of 'horizon' values.
+#' Flat prediction: always forecast a serie of zeros.
+#' This serie is then adjusted using the ".pjump" function (see \code{Forecaster} class).
#'
+#' @docType class
#' @format R6 class, inherits Forecaster
#' @alias F_Zero
#'