projects / talweg.git / blame
| Commit | Line | Data |
|---|---|---|
| e030a6e3 | 1 | #' @include Forecaster.R |
| 3d69ff21 | 2 | #' |
| e030a6e3 | 3 | #' @title Persistence Forecaster |
| 3d69ff21 | 4 | #' |
| e5aa669a | 5 | #' @description Return the last centered (similar) day curve. |
| e030a6e3 BA |
6 | #' Inherits \code{\link{Forecaster}} |
| 7 | PersistenceForecaster = setRefClass( | |
| 8 | Class = "PersistenceForecaster", | |
| 9 | contains = "Forecaster", | |
| 3d69ff21 BA |
10 | |
| 11 | methods = list( | |
| 12 | initialize = function(...) | |
| 13 | { | |
| 14 | callSuper(...) | |
| 15 | }, | |
| e030a6e3 | 16 | predictShape = function(today, memory, horizon, ...) |
| 3d69ff21 | 17 | { |
| e5aa669a | 18 | # Return centered last (similar) day curve, avoiding NAs until memory is run |
| 09cf9c19 | 19 | first_day = max(1, today-memory) |
| e5aa669a BA |
20 | same_day = ifelse(hasArg("same_day"), list(...)$same_day, TRUE) |
| 21 | # If 'same_day', get the last known future of similar day: -7 + 1 == -6 | |
| 22 | index = today - ifelse(same_day,6,0) | |
| 09cf9c19 BA |
23 | repeat |
| 24 | { | |
| 25 | { | |
| e5aa669a BA |
26 | last_serie = data$getCenteredSerie(index)[1:horizon] |
| 27 | index = index - ifelse(same_day,7,1) | |
| 09cf9c19 | 28 | }; |
| e5aa669a BA |
29 | if (!any(is.na(last_serie))) |
| 30 | return (last_serie); | |
| 09cf9c19 BA |
31 | if (index < first_day) |
| 32 | return (NA) | |
| 33 | } | |
| 3d69ff21 BA |
34 | } |
| 35 | ) | |
| 36 | ) |