xgboost
Classes | Namespaces | Enumerations
column_matrix.h File Reference

Utility for fast column-wise access. More...

#include <dmlc/endian.h>
#include <algorithm>
#include <limits>
#include <memory>
#include <vector>
#include "../data/gradient_index.h"
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Classes

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. More...
 
class  xgboost::common::SparseColumn< BinIdxType >
 
class  xgboost::common::DenseColumn< BinIdxType, any_missing >
 
class  xgboost::common::ColumnMatrix
 a collection of columns, with support for construction from GHistIndexMatrix. More...
 

Namespaces

 xgboost
 namespace of xgboost
 
 xgboost::common
 

Enumerations

enum  xgboost::common::ColumnType : uint8_t { xgboost::common::kDenseColumn, xgboost::common::kSparseColumn }
 column type More...
 

Detailed Description

Utility for fast column-wise access.

Copyright 2017-2022 by Contributors

Author
Philip Cho