R xgboost package parameters relation -


after reading docs, it's not 100% clear me difference , relation between parameters eval_metric, maximize e feval.

for example, while doing linear regression, i'm setting eval_metric custom kappa function, maximize = true. what's difference between eval_metric , feval?

thanks!

so, answer own question: feval , eval_metric same thing. same applies obj , objective. it's on github repo: https://github.com/dmlc/xgboost.


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