User-defined metrics

A custom Python object can be set as a value for the training metric.

{% include feature-importance-classes-params-can-be-used-for-train %}

{{ features__table__title__python__class }}

• CatBoost
• CatBoostClassifier
• CatBoostRegressor

{{ features__table__title__python__parameters }}

--loss-function

{{ features__table__title__python__description }}

A custom python object can be set as the value of this parameter (see an example).