-#' @include Forecaster.R
+#' Persistence Forecaster
#'
-#' @title Persistence Forecaster
+#' Look for the most recent similar day in the past, and return its corresponding curve.
#'
-#' @description Return the last centered (similar) day curve.
-#' Inherits \code{\link{Forecaster}}
-PersistenceForecaster = setRefClass(
- Class = "PersistenceForecaster",
- contains = "Forecaster",
+#' There are two variations, depending whether "similar day" means "same day in the week"
+#' or "most recent day" (regardless of day type). The corresponding argument is named
+#' "same_day": a value of TRUE implies the former interpretation (same day in week).
+#' If the last similar day has missing values, the next one is searched, and so on until
+#' one full serie is found (if no one is found, NA is returned).
+#'
+#' @docType class
+#' @format R6 class, inherits Forecaster
+#' @aliases F_Persistence
+#'
+PersistenceForecaster = R6::R6Class("PersistenceForecaster",
+ inherit = Forecaster,
- methods = list(
- initialize = function(...)
- {
- callSuper(...)
- },
- predictShape = function(today, memory, horizon, ...)
+ public = list(
+ predictShape = function(data, today, memory, horizon, ...)
{
# Return centered last (similar) day curve, avoiding NAs until memory is run
first_day = max(1, today-memory)