Adding other performance/error metrics and saving model output

[adeel1997]

Great package Nick! I am wondering how I can find other performance metrics like R2, bias. Another thing I noticed when I was saving the model output is that the size of the model is quite big. How I can save the model data in a compressed format so that I can use it again?

[adeel1997]

Okay, I figured how to add error metrics based on aggregate function. One has to group by model,forecast_horizon and window then calculate the defined error metric(R2, Bias). Finally just take a median(aggregate function) of the error metric.

[adeel1997]

Would be good to know your thought on how to save the model results? So that it can be reproduced in the next session.

Finally, if someone has more code snippet of applying caret based machine learning model in the functional wrapper used in this package. It would be good to look at it.