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[jvm-packages] Add DeviceQuantileDMatrix to Scala binding (#7459)

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This commit is contained in:
Bobby Wang
2021-11-24 20:23:18 +08:00
committed by GitHub
parent 619c450a49
commit 24be04e848
4 changed files with 226 additions and 3 deletions
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41
jvm-packages/xgboost4j/src/main/scala/ml/dmlc/xgboost4j/scala/DMatrix.scala
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@@ -1,5 +1,5 @@
/*
Copyright (c) 2014 by Contributors
Copyright (c) 2014,2021 by Contributors
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
@@ -17,8 +17,9 @@
package ml.dmlc.xgboost4j.scala
import _root_.scala.collection.JavaConverters._
import ml.dmlc.xgboost4j.LabeledPoint
import ml.dmlc.xgboost4j.java.{DMatrix => JDMatrix, DataBatch, XGBoostError}
import ml.dmlc.xgboost4j.java.{Column, ColumnBatch, DataBatch, XGBoostError, DMatrix => JDMatrix}
class DMatrix private[scala](private[scala] val jDMatrix: JDMatrix) {
/**
@@ -72,6 +73,18 @@ class DMatrix private[scala](private[scala] val jDMatrix: JDMatrix) {
this(new JDMatrix(headers, indices, data, st, shapeParam))
}
/**
* Create the normal DMatrix from column array interface
* @param columnBatch the XGBoost ColumnBatch to provide the cuda array interface
* of feature columns
* @param missing missing value
* @param nthread threads number
*/
@throws(classOf[XGBoostError])
def this(columnBatch: ColumnBatch, missing: Float, nthread: Int) {
this(new JDMatrix(columnBatch, missing, nthread))
}
/**
* create DMatrix from dense matrix
*
@@ -150,6 +163,30 @@ class DMatrix private[scala](private[scala] val jDMatrix: JDMatrix) {
jDMatrix.setGroup(group)
}
/**
* Set label of DMatrix from cuda array interface
*/
@throws(classOf[XGBoostError])
def setLabel(column: Column): Unit = {
jDMatrix.setLabel(column)
}
/**
* set weight of dmatrix from column array interface
*/
@throws(classOf[XGBoostError])
def setWeight(column: Column): Unit = {
jDMatrix.setWeight(column)
}
/**
* set base margin of dmatrix from column array interface
*/
@throws(classOf[XGBoostError])
def setBaseMargin(column: Column): Unit = {
jDMatrix.setBaseMargin(column)
}
/**
* Get group sizes of DMatrix (used for ranking)
*/

107
jvm-packages/xgboost4j/src/main/scala/ml/dmlc/xgboost4j/scala/DeviceQuantileDMatrix.scala Normal file
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@@ -0,0 +1,107 @@
/*
Copyright (c) 2021 by Contributors
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
package ml.dmlc.xgboost4j.scala
import _root_.scala.collection.JavaConverters._
import ml.dmlc.xgboost4j.java.{Column, ColumnBatch, XGBoostError, DeviceQuantileDMatrix => JDeviceQuantileDMatrix}
class DeviceQuantileDMatrix private[scala](
private[scala] override val jDMatrix: JDeviceQuantileDMatrix) extends DMatrix(jDMatrix) {
/**
* Create DeviceQuantileDMatrix from iterator based on the cuda array interface
*
* @param iter the XGBoost ColumnBatch batch to provide the corresponding cuda array interface
* @param missing the missing value
* @param maxBin the max bin
* @param nthread the parallelism
* @throws XGBoostError
*/
def this(iter: Iterator[ColumnBatch], missing: Float, maxBin: Int, nthread: Int) {
this(new JDeviceQuantileDMatrix(iter.asJava, missing, maxBin, nthread))
}
/**
* set label of dmatrix
*
* @param labels labels
*/
@throws(classOf[XGBoostError])
override def setLabel(labels: Array[Float]): Unit =
throw new XGBoostError("DeviceQuantileDMatrix does not support setLabel.")
/**
* set weight of each instance
*
* @param weights weights
*/
@throws(classOf[XGBoostError])
override def setWeight(weights: Array[Float]): Unit =
throw new XGBoostError("DeviceQuantileDMatrix does not support setWeight.")
/**
* if specified, xgboost will start from this init margin
* can be used to specify initial prediction to boost from
*
* @param baseMargin base margin
*/
@throws(classOf[XGBoostError])
override def setBaseMargin(baseMargin: Array[Float]): Unit =
throw new XGBoostError("DeviceQuantileDMatrix does not support setBaseMargin.")
/**
* if specified, xgboost will start from this init margin
* can be used to specify initial prediction to boost from
*
* @param baseMargin base margin
*/
@throws(classOf[XGBoostError])
override def setBaseMargin(baseMargin: Array[Array[Float]]): Unit =
throw new XGBoostError("DeviceQuantileDMatrix does not support setBaseMargin.")
/**
* Set group sizes of DMatrix (used for ranking)
*
* @param group group size as array
*/
@throws(classOf[XGBoostError])
override def setGroup(group: Array[Int]): Unit =
throw new XGBoostError("DeviceQuantileDMatrix does not support setGroup.")
/**
* Set label of DMatrix from cuda array interface
*/
@throws(classOf[XGBoostError])
override def setLabel(column: Column): Unit =
throw new XGBoostError("DeviceQuantileDMatrix does not support setLabel.")
/**
* set weight of dmatrix from column array interface
*/
@throws(classOf[XGBoostError])
override def setWeight(column: Column): Unit =
throw new XGBoostError("DeviceQuantileDMatrix does not support setWeight.")
/**
* set base margin of dmatrix from column array interface
*/
@throws(classOf[XGBoostError])
override def setBaseMargin(column: Column): Unit =
throw new XGBoostError("DeviceQuantileDMatrix does not support setBaseMargin.")
}