-#' @description Return the last centered (similar) day curve.
-#' Inherits \code{\link{Forecaster}}
-PersistenceForecaster = setRefClass(
- Class = "PersistenceForecaster",
- contains = "Forecaster",
+#' Return the last centered (similar) day curve.
+#' Inherits \code{\link{Forecaster}}
+PersistenceForecaster = R6::R6Class("PersistenceForecaster",
+ inherit = Forecaster,