tuomijal
tuomijal
**Is your feature request related to a current problem? Please describe.** Currently [`historical_forecasts`](https://github.com/unit8co/darts/blob/2f7c9dbb0e9e281cb1d74d609748a2b84fcec969/darts/models/forecasting/forecasting_model.py#L587) function's `retrain` parameter only generates `train_series` in the cross-validation loop. This is a problem if we want...
**Problem description** Currently, [Scaler](darts/dataprocessing/transformers/scaler.py) transforms input series "globally", meaning that all values of the input vector are considered: ```python from darts.dataprocessing.transformers import Scaler from darts import TimeSeries scaler = Scaler()...