data.h File Reference

The input data structure of xgboost. More...

#include <dmlc/base.h>
#include <dmlc/data.h>
#include <rabit/rabit.h>
#include <cstring>
#include <memory>
#include <numeric>
#include <algorithm>
#include <string>
#include <vector>
#include "./base.h"
#include "../../src/common/span.h"
#include "../../src/common/group_data.h"
#include "../../src/common/host_device_vector.h"

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Classes
class	xgboost::MetaInfo
	Meta information about dataset, always sit in memory. More...
struct	xgboost::Entry
	Element from a sparse vector. More...
class	xgboost::SparsePage
	In-memory storage unit of sparse batch, stored in CSR format. More...
class	xgboost::BatchIteratorImpl
class	xgboost::BatchIterator
class	xgboost::BatchSet
class	xgboost::DataSource
	This is data structure that user can pass to DMatrix::Create to create a DMatrix for training, user can create this data structure for customized Data Loading on single machine. More...
class	xgboost::RowSet
	A vector-like structure to represent set of rows. But saves the memory when all rows are in the set (common case in xgb) More...
class	xgboost::DMatrix
	Internal data structured used by XGBoost during training. There are two ways to create a customized DMatrix that reads in user defined-format. More...

Namespaces
	xgboost
	namespace of xgboost
	dmlc

Enumerations
enum	xgboost::DataType { xgboost::kFloat32 = 1, xgboost::kDouble = 2, xgboost::kUInt32 = 3, xgboost::kUInt64 = 4 }
	data type accepted by xgboost interface More...

Functions
	dmlc::DMLC_DECLARE_TRAITS (is_pod, xgboost::Entry, true)
	dmlc::DMLC_DECLARE_TRAITS (has_saveload, xgboost::RowSet, true)

Detailed Description

The input data structure of xgboost.

Copyright (c) 2015 by Contributors

Author

Tianqi Chen