xgboost.callback.CallbackContainer Class Reference

Public Member Functions
None	__init__ (self, Sequence[TrainingCallback] callbacks, Optional[Callable] metric=None, bool output_margin=True, bool is_cv=False)
_Model	before_training (self, _Model model)
_Model	after_training (self, _Model model)
bool	before_iteration (self, _Model model, int epoch, DMatrix dtrain, Optional[List[Tuple[DMatrix, str]]] evals)
bool	after_iteration (self, _Model model, int epoch, DMatrix dtrain, Optional[List[Tuple[DMatrix, str]]] evals)

Data Fields
	callbacks
	metric
	is_cv
	aggregated_cv
	history

Protected Member Functions
None	_update_history (self, Union[List[Tuple[str, float]], List[Tuple[str, float, float]]] score, int epoch)

Protected Attributes
	_output_margin

Detailed Description

A special internal callback for invoking a list of other callbacks.

.. versionadded:: 1.3.0

Member Function Documentation

after_iteration()

bool xgboost.callback.CallbackContainer.after_iteration	(		self,
		_Model	model,
		int	epoch,
		DMatrix	dtrain,
		Optional[List[Tuple[DMatrix, str]]]	evals
	)

Function called after training iteration.

after_training()

_Model xgboost.callback.CallbackContainer.after_training	(		self,
		_Model	model
	)

Function called after training.

before_iteration()

bool xgboost.callback.CallbackContainer.before_iteration	(		self,
		_Model	model,
		int	epoch,
		DMatrix	dtrain,
		Optional[List[Tuple[DMatrix, str]]]	evals
	)

Function called before training iteration.

before_training()

_Model xgboost.callback.CallbackContainer.before_training	(		self,
		_Model	model
	)

Function called before training.

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The documentation for this class was generated from the following file:

• External/xgboost/python-package/xgboost/callback.py