Training gain versus test gain

[tmlehman]

Could someone tell me the difference between training gain and test gain?

Thank you!

[Cristian Alexander Cruz Rodríguez]

Hi, 

I have a same question. Do you already know the answer?

Thanks

[Taylor Lehman]

Yes, I was able to find the answer.

Training gain is a measure of the model’s fit to the training data (sample points placed into the model).

Test gain is a measure of the model’s fit to the test data that was set aside. This measurement is more important for transferability (ex. applying the model to future climate conditions).

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