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Hi <@U04GUDQLHR8>,

Sends for using the library hope it gives you service.
The `n_harmonic`  parameter is particular to the NBEATS model as it controls the sines/cosines space of the seasonality projections. We explain it in page 7 of the NBEATSx paper: <https://arxiv.org/pdf/2104.05522.pdf>

The NHITS model specializes over frequencies based on the `n_freq_downsample` .

You can find here an example of the NHITS' decompositon through frequencies:
<https://github.com/Nixtla/neuralforecast/blob/main/nbs/models.nhits.ipynb>

Great thanks and for the swift reply. I will try it.