Deterministic selection by cycling through features one at a time. More...

Inheritance diagram for xgboost::linear::CyclicFeatureSelector:

Public Member Functions
int	NextFeature (Context const , int iteration, const gbm::GBLinearModel &model, int, const std::vector< GradientPair > &, DMatrix , float, float) override
	Select next coordinate to update.

	FeatureSelector ()=default

Public Member Functions inherited from xgboost::linear::FeatureSelector
virtual	~FeatureSelector ()=default
	virtual destructor

virtual void	Setup (Context const , const gbm::GBLinearModel &, const std::vector< GradientPair > &, DMatrix , float, float, int)
	Setting up the selector state prior to looping through features.

Additional Inherited Members
Static Public Member Functions inherited from xgboost::linear::FeatureSelector
static FeatureSelector *	Create (int choice)
	factory method

Detailed Description

Deterministic selection by cycling through features one at a time.

Member Function Documentation

int xgboost::linear::CyclicFeatureSelector::NextFeature	(	Context const *	ctx,
		int	iteration,
		const gbm::GBLinearModel &	model,
		int	group_idx,
		const std::vector< GradientPair > &	gpair,
		DMatrix *	p_fmat,
		float	alpha,
		float	lambda
	)

inlineoverridevirtual

Select next coordinate to update.

Parameters

ctx	Booster context
iteration	The iteration in a loop through features
model	The model.
group_idx	Zero-based index of the group.
gpair	The gpair.
p_fmat	The feature matrix.
alpha	Regularisation alpha.
lambda	Regularisation lambda.

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