xgboost::MultiTargetTree 类参考

多目标模型的树结构。更多...

#include <multi_target_tree_model.h>

xgboost::MultiTargetTree 的继承图

xgboost::MultiTargetTree 的协作图

公共成员函数
	MultiTargetTree (TreeParam const *param)
	MultiTargetTree (MultiTargetTree const &that)
MultiTargetTree &	operator= (MultiTargetTree const &that)=delete
	MultiTargetTree (MultiTargetTree &&that)=delete
MultiTargetTree &	operator= (MultiTargetTree &&that)=delete
void	SetLeaf (bst_node_t nidx, linalg::VectorView< float const > weight)
	设置叶子的权重。 更多...
void	Expand (bst_node_t nidx, bst_feature_t split_idx, float split_cond, bool default_left, linalg::VectorView< float const > base_weight, linalg::VectorView< float const > left_weight, linalg::VectorView< float const > right_weight)
	将叶子节点扩展为分裂节点。 更多...
bool	IsLeaf (bst_node_t nidx) const
bst_node_t	Parent (bst_node_t nidx) const
bst_node_t	LeftChild (bst_node_t nidx) const
bst_node_t	RightChild (bst_node_t nidx) const
bst_feature_t	SplitIndex (bst_node_t nidx) const
float	SplitCond (bst_node_t nidx) const
bool	DefaultLeft (bst_node_t nidx) const
bst_node_t	DefaultChild (bst_node_t nidx) const
bst_target_t	NumTargets () const
std::size_t	Size () const
bst_node_t	Depth (bst_node_t nidx) const
linalg::VectorView< float const >	LeafValue (bst_node_t nidx) const
MultiTargetTreeView	View (Context const *ctx) const
	获取树的视图。 更多...
void	LoadModel (Json const &in) override
	从 JSON 对象加载模型 更多...
void	SaveModel (Json *out) const override
	将模型配置保存到 JSON 对象 更多...
std::size_t	MemCostBytes () const
从 xgboost::Model 继承的公共成员函数
virtual	~Model ()=default

静态公共成员函数
static constexpr bst_node_t	InvalidNodeId ()

详细描述

多目标模型的树结构。

构造函数和析构函数文档

MultiTargetTree() [1/3]

xgboost::MultiTargetTree::MultiTargetTree ( TreeParam const *  param )

显式

MultiTargetTree() [2/3]

xgboost::MultiTargetTree::MultiTargetTree

(

MultiTargetTree const &

that

)

MultiTargetTree() [3/3]

xgboost::MultiTargetTree::MultiTargetTree ( MultiTargetTree &&  that )

删除

成员函数文档

DefaultChild()

bst_node_t xgboost::MultiTargetTree::DefaultChild ( bst_node_t  nidx ) const

inline

DefaultLeft()

bool xgboost::MultiTargetTree::DefaultLeft ( bst_node_t  nidx ) const

inline

Depth()

bst_node_t xgboost::MultiTargetTree::Depth ( bst_node_t  nidx ) const

inline

Expand()

void xgboost::MultiTargetTree::Expand	(	bst_node_t	nidx,
		bst_feature_t	split_idx,
		float	split_cond,
		bool	default_left,
		linalg::VectorView< float const >	base_weight,
		linalg::VectorView< float const >	left_weight,
		linalg::VectorView< float const >	right_weight
	)

将叶子节点扩展为分裂节点。

InvalidNodeId()

static constexpr bst_node_t xgboost::MultiTargetTree::InvalidNodeId ( )

inlinestaticconstexpr

IsLeaf()

bool xgboost::MultiTargetTree::IsLeaf ( bst_node_t  nidx ) const

inline

LeafValue()

linalg::VectorView<float const> xgboost::MultiTargetTree::LeafValue ( bst_node_t  nidx ) const

inline

LeftChild()

bst_node_t xgboost::MultiTargetTree::LeftChild ( bst_node_t  nidx ) const

inline

LoadModel()

void xgboost::MultiTargetTree::LoadModel ( Json const &  in )

overridevirtual

从JSON对象加载模型

参数

in	要从中加载模型的 JSON 对象。

实现 xgboost::Model。

MemCostBytes()

std::size_t xgboost::MultiTargetTree::MemCostBytes

(

)

const

NumTargets()

bst_target_t xgboost::MultiTargetTree::NumTargets

(

)

const

operator=() [1/2]

MultiTargetTree& xgboost::MultiTargetTree::operator= ( MultiTargetTree &&  that )

删除

operator=() [2/2]

MultiTargetTree& xgboost::MultiTargetTree::operator= ( MultiTargetTree const &  that )

删除

Parent()

bst_node_t xgboost::MultiTargetTree::Parent ( bst_node_t  nidx ) const

inline

RightChild()

bst_node_t xgboost::MultiTargetTree::RightChild ( bst_node_t  nidx ) const

inline

SaveModel()

void xgboost::MultiTargetTree::SaveModel ( Json *  out ) const

overridevirtual

将模型配置保存到JSON对象

参数

out	要保存模型的 JSON 容器。

实现 xgboost::Model。

SetLeaf()

void xgboost::MultiTargetTree::SetLeaf	(	bst_node_t	nidx,
		linalg::VectorView< float const >	weight
	)

设置叶子的权重。

Size()

std::size_t xgboost::MultiTargetTree::Size

(

)

const

SplitCond()

float xgboost::MultiTargetTree::SplitCond ( bst_node_t  nidx ) const

inline

SplitIndex()

bst_feature_t xgboost::MultiTargetTree::SplitIndex ( bst_node_t  nidx ) const

inline

View()

MultiTargetTreeView xgboost::MultiTargetTree::View

(

Context const *

ctx

)

const

获取树的视图。

此方法不是线程安全的。

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此类的文档由以下文件生成

• /home/docs/checkouts/readthedocs.org/user_builds/xgboost/checkouts/stable/include/xgboost/multi_target_tree_model.h