Refactor evaluation flow

[gravesee]

To support different evaluation strategies, could a trait be implemented that abstracts and captures the evaluation flow logic to support other paradigms.

[jinlow]

Yes, definitely!
Are the main ones we would want to support...

• One metric one or multiple datasets.
• Multiple metric's one or multiple datasets?

[gravesee]

• out-of-bag error estimate

The function signature could take the dev data, the tuple of sample indices, the evaluation data, and all metrics