mlpack::tree::split Namespace Reference

Functions
template<typename MatType , typename SplitType >
size_t	PerformSplit (MatType &data, const size_t begin, const size_t count, const typename SplitType::SplitInfo &splitInfo)
	This function implements the default split behavior i.e. More...
template<typename MatType , typename SplitType >
size_t	PerformSplit (MatType &data, const size_t begin, const size_t count, const typename SplitType::SplitInfo &splitInfo, std::vector< size_t > &oldFromNew)
	This function implements the default split behavior i.e. More...

Function Documentation

template<typename MatType , typename SplitType >

size_t mlpack::tree::split::PerformSplit	(	MatType &	data,
		const size_t	begin,
		const size_t	count,
		const typename SplitType::SplitInfo &	splitInfo
	)

This function implements the default split behavior i.e.

it rearranges points according to the split information. The SplitType::AssignToLeftNode() function is used in order to determine the child that contains any particular point.

Parameters

data	The dataset used by the binary space tree.
begin	Index of the starting point in the dataset that belongs to this node.
count	Number of points in this node.
splitInfo	The information about the split.

Definition at line 36 of file perform_split.hpp.

References mlpack::Log::Assert().

template<typename MatType , typename SplitType >

size_t mlpack::tree::split::PerformSplit	(	MatType &	data,
		const size_t	begin,
		const size_t	count,
		const typename SplitType::SplitInfo &	splitInfo,
		std::vector< size_t > &	oldFromNew
	)

This function implements the default split behavior i.e.

it rearranges points according to the split information. The SplitType::AssignToLeftNode() function is used in order to determine the child that contains any particular point. The function takes care of indices and returns the list of changed indices.

Parameters

data	The dataset used by the binary space tree.
begin	Index of the starting point in the dataset that belongs to this node.
count	Number of points in this node.
splitInfo	The information about the split.
oldFromNew	Vector which will be filled with the old positions for each new point.

Definition at line 101 of file perform_split.hpp.

References mlpack::Log::Assert().