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 scala
  Definition Classes
    xgboost4j
- Booster
- DMatrix
- DeviceQuantileDMatrix
- EvalTrait
- ExternalCheckpointManager
- ObjectiveTrait
- XGBoost

c

ml.dmlc.xgboost4j.scala

# DeviceQuantileDMatrix 

###

#### class DeviceQuantileDMatrix extends DMatrix

Linear Supertypes
DMatrix, AnyRef, Any
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Inherited

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

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Visibility

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2. All

### Instance Constructors

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

   Create DeviceQuantileDMatrix from iterator based on the cuda array interface

   Create DeviceQuantileDMatrix from iterator based on the cuda array interface

   iter

     the XGBoost ColumnBatch batch to provide the corresponding cuda array interface

   missing

     the missing value

   maxBin

     the max bin

   nthread

     the parallelism

   Exceptions thrown

### 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 delete(): 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[java.lang]
   Definition Classes
     AnyRef
   Annotations
     @throws( classOf[java.lang.Throwable] )
10.  def getBaseMargin: Array[Float]

    get base margin of the DMatrix

    get base margin of the DMatrix

    returns

      base margin

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

    Get group sizes of DMatrix (used for ranking)

    Get group sizes of DMatrix (used for ranking)

    Definition Classes
      DMatrix
    Annotations
      @throws( classOf[XGBoostError] )
13.  def getHandle: Long
    Definition Classes
      DMatrix
14.  def getLabel: Array[Float]

    get label values

    get label values

    returns

      label

    Definition Classes
      DMatrix
    Annotations
      @throws( classOf[XGBoostError] )
15.  def getWeight: Array[Float]

    get weight of the DMatrix

    get weight of the DMatrix

    returns

      weights

    Definition Classes
      DMatrix
    Annotations
      @throws( classOf[XGBoostError] )
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
    Annotations
      @throws( classOf[XGBoostError] )
22.  def saveBinary(filePath: String): Unit

    save DMatrix to filePath

    save DMatrix to filePath

    filePath

      file path

    Definition Classes
      DMatrix
23.  def setBaseMargin(column: Column): Unit

    set base margin of dmatrix from column array interface

    set base margin of dmatrix from column array interface

    Definition Classes
      DeviceQuantileDMatrix → DMatrix
    Annotations
      @throws( classOf[XGBoostError] )
24.  def setBaseMargin(baseMargin: Array[Array[Float]]): Unit

    if specified, xgboost will start from this init margin can be used to specify initial prediction to boost from

    if specified, xgboost will start from this init margin can be used to specify initial prediction to boost from

    baseMargin

      base margin

    Definition Classes
      DeviceQuantileDMatrix → DMatrix
    Annotations
      @throws( classOf[XGBoostError] )
25.  def setBaseMargin(baseMargin: Array[Float]): Unit

    if specified, xgboost will start from this init margin can be used to specify initial prediction to boost from

    if specified, xgboost will start from this init margin can be used to specify initial prediction to boost from

    baseMargin

      base margin

    Definition Classes
      DeviceQuantileDMatrix → DMatrix
    Annotations
      @throws( classOf[XGBoostError] )
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
    Annotations
      @throws( classOf[XGBoostError] )
27.  def setLabel(column: Column): Unit

    Set label of DMatrix from cuda array interface

    Set label of DMatrix from cuda array interface

    Definition Classes
      DeviceQuantileDMatrix → DMatrix
    Annotations
      @throws( classOf[XGBoostError] )
28.  def setLabel(labels: Array[Float]): Unit

    set label of dmatrix

    set label of dmatrix

    labels

      labels

    Definition Classes
      DeviceQuantileDMatrix → DMatrix
    Annotations
      @throws( classOf[XGBoostError] )
29.  def setWeight(column: Column): Unit

    set weight of dmatrix from column array interface

    set weight of dmatrix from column array interface

    Definition Classes
      DeviceQuantileDMatrix → DMatrix
    Annotations
      @throws( classOf[XGBoostError] )
30.  def setWeight(weights: Array[Float]): Unit

    set weight of each instance

    set weight of each instance

    weights

      weights

    Definition Classes
      DeviceQuantileDMatrix → DMatrix
    Annotations
      @throws( classOf[XGBoostError] )
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
    Annotations
      @throws( classOf[XGBoostError] )
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