trait ObjectiveTrait extends IObjective
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def
getGradient(predicts: Array[Array[Float]], dtrain: DMatrix): List[Array[Float]]
user define objective function, return gradient and second order gradient
user define objective function, return gradient and second order gradient
- predicts
untransformed margin predicts
- dtrain
training data
- returns
List with two float array, correspond to grad and hess
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def
getGradient(predicts: Array[Array[Float]], dtrain: java.DMatrix): List[Array[Float]]
user define objective function, return gradient and second order gradient
user define objective function, return gradient and second order gradient
- predicts
untransformed margin predicts
- dtrain
training data
- returns
List with two float array, correspond to first order grad and second order grad
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- ObjectiveTrait → IObjective
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