Data transforms are super important for getting the most out of your forecasting. With Forecast Forge you need to use them if your data must be within a specific range (e.g. sessions must always be greater than zero, conversion rate must be between 0% and 100%) and they can also improve the accuracy of your forecasts too!
This video shows you how to test different data transformations and pick the one that performs the best.
All the examples in this video use the sidebar to configure the forecast rather
than the FORGE_FORECAST custom function. This is because the using the sidebar
enables us to automatically backtest the forecast method against historical
data. You can do this with FORGE_FORECAST too but it is more effort.