why use current data to make a forecast? how often to create a double seasonal forecast how often should you use tbats to create double seasonal forecast in r when to use double seasonal seasonal model how often do you use tbat for forecasts how to use double seasonal time period in r? when does a seasonal forecast need to be made can you make a weather forecast every hour how do i model seasonality of time series can you use seasonal data for a model what model to use for seasonal forecasts how often to use seasonal time series? how often to model seasonality how long can a model be made for a forecast when can i make a seasonal time series when do i use seasonal data can I use r for seasonal model what data are available for seasonal forecasting how often should i use seasonal data can time series be modelled at a time