a column storage, to be used with ApplySplit. Note that each bin id is stored as index[i] + index_base. Different types of column index for each column allow to reduce the memory usage. More...

#include <column_matrix.h>

Public Member Functions
	Column (common::Span< const BinIdxType > index, bst_bin_t least_bin_idx)

bst_bin_t	GetGlobalBinIdx (size_t idx) const

size_t	Size () const

Static Public Attributes
static constexpr bst_bin_t	kMissingId = -1

Detailed Description

template<typename BinIdxType>
class xgboost::common::Column< BinIdxType >

a column storage, to be used with ApplySplit. Note that each bin id is stored as index[i] + index_base. Different types of column index for each column allow to reduce the memory usage.

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

External/xgboost/src/common/column_matrix.h

Public Member Functions

Static Public Attributes

Detailed Description