Adding Confusion matrix support in Trainer
I want to add confusion matrix support in Trainer. It would be a useful addition. The only dependency would be `sklearn` which this library already uses for metrics. It can allow users to better understand about predictions coming from model. @sgugger Let me know if this is something you want to add.






Hi there! We love contributions, but metrics should now be implemented directly in the datasets library, not inside Transformers. So you should check there if it does not already exist, and if not, suggest a Pr on that repository :-)<|||||>Okay then, I will close it.