## Uses of Interface
ml.dmlc.xgboost4j.java.IObjective

- - ### Uses of IObjective in ml.dmlc.xgboost4j.java

    Methods in ml.dmlc.xgboost4j.java with parameters of type IObjective
    Modifier and Type | Method and Description
    --- | ---
    `static String[]` | XGBoost.`crossValidation(DMatrix data, Map<String,Object> params, int round, int nfold, String[] metrics, IObjective obj, IEvaluation eval)` Cross-validation with given parameters.
    `static Booster` | XGBoost.`train(DMatrix dtrain, Map<String,Object> params, int round, Map<String,DMatrix> watches, float[][] metrics, IObjective obj, IEvaluation eval, int earlyStoppingRound)` Train a booster given parameters.
    `static Booster` | XGBoost.`train(DMatrix dtrain, Map<String,Object> params, int round, Map<String,DMatrix> watches, float[][] metrics, IObjective obj, IEvaluation eval, int earlyStoppingRound, Booster booster)` Train a booster given parameters.
    `static Booster` | XGBoost.`train(DMatrix dtrain, Map<String,Object> params, int round, Map<String,DMatrix> watches, IObjective obj, IEvaluation eval)` Train a booster given parameters.
    `void` | Booster.`update(DMatrix dtrain, IObjective obj)` Update with customize obj func

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