Hi everyone, I'm training an NHITS with futr_exog_var and the horizon=360hrs. I fully optimized the hyperparameters using AutoNHITS. Is there a way to use this model but only give it futr_df that goes out only 3hrs in the future and produce the next 3hrs forecast with it? I know one solution would be to train another model with horizon=3hr and use that but I can't do that. Since that would mean I would need 360/3=120 models to train which is not feasible.

What happens when you just give bogus numbers for futr_df beyond 3hrs? (e.g. pick last value and keep it constant over all remaining steps)

it would put out garbage even for the first 3hrs

Sorry, no, I'd just retrain