+++ /dev/null
-#' @include Forecaster.R
-#'
-#' @title Persistence Forecaster
-#'
-#' @description Return the last centered (similar) day curve.
-#' Inherits \code{\link{Forecaster}}
-PersistenceForecaster = setRefClass(
- Class = "PersistenceForecaster",
- contains = "Forecaster",
-
- methods = list(
- initialize = function(...)
- {
- callSuper(...)
- },
- predictShape = function(today, memory, horizon, ...)
- {
- # Return centered last (similar) day curve, avoiding NAs until memory is run
- first_day = max(1, today-memory)
- same_day = ifelse(hasArg("same_day"), list(...)$same_day, TRUE)
- # If 'same_day', get the last known future of similar day: -7 + 1 == -6
- index = today - ifelse(same_day,6,0)
- repeat
- {
- {
- last_serie = data$getCenteredSerie(index)[1:horizon]
- index = index - ifelse(same_day,7,1)
- };
- if (!any(is.na(last_serie)))
- return (last_serie);
- if (index < first_day)
- return (NA)
- }
- }
- )
-)