Dear Nixla Team, I have a question regarding normalization/scaling of different features. If I select a model that allows exogenous variables, say NBEATSx and I select a Scaler say minmax1. Is this Scaler applied to y only or to the exogenous vars aswell? Exogenous vars maybe of very different type e.g. int or booleans that I would not like to be normalized at all (because they have time invariant meaning that I do not want messed up) or time series, which I would like to have normalized. Is there a way to control how each input is normalized?

Hi @Stefan Wiegand. Scalers are applied to all temporal variables (

y

,

hist_egox_list

, and

futr_exog_list

). There is currently no way of controlling which variables to normalize. In our experience, normalizing booleans does not affect performance (for

nf

models)

Great! Thanks alot for your quick response!