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