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yanyachen / rBayesianOptimization

Bayesian Optimization of Hyperparameters
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Minimizing #17

Closed dragie closed 7 years ago

dragie commented 7 years ago

How do I minimize an evaluation metric? I am trying to develop a xgboost model with mlogloss as evalmetric. But it looks like the FUN only try to maximize the values.

yanyachen commented 7 years ago

You can try to maximize (-1 * mlogloss)

dragie commented 7 years ago

That helped me. Thanks