-#' Obtain jump forecast by the Persistence method
+#' getPersistenceJumpPredict
+#'
+#' Analog of the PersistenceForecaster: predict the jump after last observed value either
+#' by re-applying the last jump between similar day and its follower (if argument
+#' "same_day" is TRUE), or by re-using the very last observed jump (when "same_day" =
+#' FALSE).
#'
#' @inheritParams computeForecast
#' @inheritParams getZeroJumpPredict
#'
+#' @alias J_Persistence
+#'
getPersistenceJumpPredict = function(data, today, memory, horizon, params, ...)
{
#return gap between end of similar day curve and first day of tomorrow (in the past)