xgboost4j_2.12 1.6.2 API < Back
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# Packages

-  package root
  Definition Classes
    root
-  package ml
  Definition Classes
    root
-  package dmlc
  Definition Classes
    ml
-  package xgboost4j
  Definition Classes
    dmlc
-  package java
  Definition Classes
    xgboost4j
-  package util
  Definition Classes
    java
- Booster
- Column
- ColumnBatch
- DMatrix
- DeviceQuantileDMatrix
- ExternalCheckpointManager
- IEvaluation
- IObjective
- IRabitTracker
- Rabit
- RabitTracker
- TrackerProperties
- XGBoost
- XGBoostError

c

ml.dmlc.xgboost4j.java

# DeviceQuantileDMatrix 

###

#### class DeviceQuantileDMatrix extends DMatrix

DeviceQuantileDMatrix will only be used to train

Linear Supertypes
DMatrix, AnyRef, Any
 
Ordering

1. Alphabetic
2. By Inheritance

Inherited

1. DeviceQuantileDMatrix
2. DMatrix
3. AnyRef
4. Any

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Visibility

1. Public
2. All

### Instance Constructors

1.  new DeviceQuantileDMatrix(iter: Iterator[ColumnBatch], missing: Float, maxBin: Int, nthread: Int)

### Value Members

1.  final def !=(arg0: Any): Boolean
   Definition Classes
     AnyRef → Any
2.  final def ##(): Int
   Definition Classes
     AnyRef → Any
3.  final def ==(arg0: Any): Boolean
   Definition Classes
     AnyRef → Any
4.  final def asInstanceOf[T0]: T0
   Definition Classes
     Any
5.  def clone(): AnyRef
   Attributes
     protected[java.lang]
   Definition Classes
     AnyRef
   Annotations
     @native() @throws( ... )
6.  def dispose(): Unit
   Definition Classes
     DMatrix
7.  final def eq(arg0: AnyRef): Boolean
   Definition Classes
     AnyRef
8.  def equals(arg0: Any): Boolean
   Definition Classes
     AnyRef → Any
9.  def finalize(): Unit
   Attributes
     protected[ml.dmlc.xgboost4j.java]
   Definition Classes
     DMatrix → AnyRef
10.  def getBaseMargin(): Array[Float]

    Get base margin of the DMatrix.

    Get base margin of the DMatrix.

    Definition Classes
      DMatrix
11.  final def getClass(): Class[_]
    Definition Classes
      AnyRef → Any
    Annotations
      @native()
12.  def getGroup(): Array[Int]

    Get group sizes of DMatrix

    Get group sizes of DMatrix

    returns

      group size as array

    Definition Classes
      DMatrix
    Exceptions thrown

      `XGBoostError` native error

13.  def getHandle(): Long

    Get the handle

    Get the handle

    Definition Classes
      DMatrix
14.  def getLabel(): Array[Float]

    get label values

    get label values

    returns

      label

    Definition Classes
      DMatrix
    Exceptions thrown

      `XGBoostError` native error

15.  def getWeight(): Array[Float]

    get weight of the DMatrix

    get weight of the DMatrix

    returns

      weights

    Definition Classes
      DMatrix
    Exceptions thrown

      `XGBoostError` native error

16.  def hashCode(): Int
    Definition Classes
      AnyRef → Any
    Annotations
      @native()
17.  final def isInstanceOf[T0]: Boolean
    Definition Classes
      Any
18.  final def ne(arg0: AnyRef): Boolean
    Definition Classes
      AnyRef
19.  final def notify(): Unit
    Definition Classes
      AnyRef
    Annotations
      @native()
20.  final def notifyAll(): Unit
    Definition Classes
      AnyRef
    Annotations
      @native()
21.  def rowNum(): Long

    get the row number of DMatrix

    get the row number of DMatrix

    returns

      number of rows

    Definition Classes
      DMatrix
    Exceptions thrown

      `XGBoostError` native error

22.  def saveBinary(filePath: String): Unit

    save DMatrix to filePath

    save DMatrix to filePath

    Definition Classes
      DMatrix
23.  def setBaseMargin(baseMargin: Array[Array[Float]]): Unit

    Set base margin (initial prediction).

    Set base margin (initial prediction).

    Definition Classes
      DeviceQuantileDMatrix → DMatrix
24.  def setBaseMargin(baseMargin: Array[Float]): Unit

    Set base margin (initial prediction).

    Set base margin (initial prediction).

    The margin must have the same number of elements as the number of rows in this matrix.

    Definition Classes
      DeviceQuantileDMatrix → DMatrix
25.  def setBaseMargin(column: Column): Unit

    Set base margin of DMatrix from cuda array interface

    Set base margin of DMatrix from cuda array interface

    column

      the XGBoost Column to provide the cuda array interface of base margin column

    Definition Classes
      DeviceQuantileDMatrix → DMatrix
    Exceptions thrown

      `XGBoostError` native error

26.  def setGroup(group: Array[Int]): Unit

    Set group sizes of DMatrix (used for ranking)

    Set group sizes of DMatrix (used for ranking)

    group

      group size as array

    Definition Classes
      DeviceQuantileDMatrix → DMatrix
    Exceptions thrown

      `XGBoostError` native error

27.  def setLabel(labels: Array[Float]): Unit

    set label of dmatrix

    set label of dmatrix

    labels

      labels

    Definition Classes
      DeviceQuantileDMatrix → DMatrix
    Exceptions thrown

      `XGBoostError` native error

28.  def setLabel(column: Column): Unit

    Set label of DMatrix from cuda array interface

    Set label of DMatrix from cuda array interface

    column

      the XGBoost Column to provide the cuda array interface of label column

    Definition Classes
      DeviceQuantileDMatrix → DMatrix
    Exceptions thrown

      `XGBoostError` native error

29.  def setWeight(weights: Array[Float]): Unit

    set weight of each instance

    set weight of each instance

    weights

      weights

    Definition Classes
      DeviceQuantileDMatrix → DMatrix
    Exceptions thrown

      `XGBoostError` native error

30.  def setWeight(column: Column): Unit

    Set weight of DMatrix from cuda array interface

    Set weight of DMatrix from cuda array interface

    column

      the XGBoost Column to provide the cuda array interface of weight column

    Definition Classes
      DeviceQuantileDMatrix → DMatrix
    Exceptions thrown

      `XGBoostError` native error

31.  def slice(rowIndex: Array[Int]): DMatrix

    Slice the DMatrix and return a new DMatrix that only contains `rowIndex`.

    Slice the DMatrix and return a new DMatrix that only contains `rowIndex`.

    rowIndex

      row index

    returns

      sliced new DMatrix

    Definition Classes
      DMatrix
    Exceptions thrown

      `XGBoostError` native error

32.  final def synchronized[T0](arg0: ⇒ T0): T0
    Definition Classes
      AnyRef
33.  def toString(): String
    Definition Classes
      AnyRef → Any
34.  final def wait(): Unit
    Definition Classes
      AnyRef
    Annotations
      @throws( ... )
35.  final def wait(arg0: Long, arg1: Int): Unit
    Definition Classes
      AnyRef
    Annotations
      @throws( ... )
36.  final def wait(arg0: Long): Unit
    Definition Classes
      AnyRef
    Annotations
      @native() @throws( ... )

### Inherited from DMatrix

### Inherited from AnyRef

### Inherited from Any

### Ungrouped