Refit a MEAN model — refit.model

Applies a fitted average method model to a new dataset.

# S3 method for class 'model_mean'
refit(object, new_data, specials = NULL, reestimate = FALSE, ...)

Arguments

object: A model for which forecasts are required.
new_data: A tsibble containing the time points and exogenous regressors to produce forecasts for.
specials: (passed by fabletools::forecast.mdl_df()).
reestimate: If TRUE, the mean for the fitted model will be re-estimated to suit the new data.
...: Other arguments passed to methods

Examples

lung_deaths_male <- as_tsibble(mdeaths)
lung_deaths_female <- as_tsibble(fdeaths)

fit <- lung_deaths_male %>%
  model(MEAN(value))

report(fit)
#> Series: value 
#> Model: MEAN 
#> 
#> Mean: 1495.9444 
#> sigma^2: 187619.7152 

fit %>%
  refit(lung_deaths_female) %>%
  report()
#> Series: value 
#> Model: MEAN 
#> 
#> Mean: 1495.9444 
#> sigma^2: 32299.2909