why multi-step predict future only use one prediction, rather than use the length of output_window like [-output_window:]

[Jin-Xi]

https://github.com/oliverguhr/transformer-time-series-prediction/blob/570d39bc0bbd61c823626ec9ca8bb5696c068187/transformer-multistep.py#L210

[oliverguhr]

Thanks for the report, this is a bug. I just copied the plot code from the single step variant. I guess we need to chnage these two lines, to match the window / step size.

https://github.com/oliverguhr/transformer-time-series-prediction/blob/570d39bc0bbd61c823626ec9ca8bb5696c068187/transformer-multistep.py#L206

https://github.com/oliverguhr/transformer-time-series-prediction/blob/570d39bc0bbd61c823626ec9ca8bb5696c068187/transformer-multistep.py#L210

[xiaoerlaigeid]

https://github.com/oliverguhr/transformer-time-series-prediction/blob/570d39bc0bbd61c823626ec9ca8bb5696c068187/transformer-multistep.py#L182

I think this line have similar bugs