QuantileDiscretizer

Transform a column of continuous features to n columns of binned categorical features. The number of bins is set by the numBuckets parameter.

The bin ranges are chosen using the Algebird's QTree approximate data structure. The precision of the approximation can be controlled with the k parameter.

Missing values are transformed to zero vectors.

When using aggregated feature summary from a previous session, values outside of previously seen [min, max] are binned into the first or last bucket and FeatureRejection.OutOfBound rejections are reported.

Linear Supertypes

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final def !=(arg0: Any): Boolean

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final def ##(): Int

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final def ==(arg0: Any): Boolean

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def apply(name: String, numBuckets: Int = 2, k: Int = QTreeAggregator.DefaultK): Transformer[Double, B, C]

Create a new QuantileDiscretizer instance.
Create a new QuantileDiscretizer instance.
numBuckets
number of buckets (quantiles, or categories) into which data points are grouped, must be greater than or equal to 2
k
precision of the underlying Algebird QTree approximation
final def asInstanceOf[T0]: T0

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def clone(): AnyRef

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protected[java.lang]
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@throws( ... )
final def eq(arg0: AnyRef): Boolean

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def equals(arg0: Any): Boolean

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def finalize(): Unit

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protected[java.lang]
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@throws( classOf[java.lang.Throwable] )
final def getClass(): Class[_]

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def hashCode(): Int

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final def isInstanceOf[T0]: Boolean

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final def ne(arg0: AnyRef): Boolean

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final def notify(): Unit

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final def notifyAll(): Unit

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final def synchronized[T0](arg0: ⇒ T0): T0

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def toString(): String

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final def wait(): Unit

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@throws( ... )
final def wait(arg0: Long, arg1: Int): Unit

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final def wait(arg0: Long): Unit

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Related Doc: package transformers

object QuantileDiscretizer extends Serializable

Value Members

final def !=(arg0: Any): Boolean

final def ##(): Int

final def ==(arg0: Any): Boolean

def apply(name: String, numBuckets: Int = 2, k: Int = QTreeAggregator.DefaultK): Transformer[Double, B, C]

final def asInstanceOf[T0]: T0

def clone(): AnyRef

final def eq(arg0: AnyRef): Boolean

def equals(arg0: Any): Boolean

def finalize(): Unit

final def getClass(): Class[_]

def hashCode(): Int

final def isInstanceOf[T0]: Boolean

final def ne(arg0: AnyRef): Boolean

final def notify(): Unit

final def notifyAll(): Unit

final def synchronized[T0](arg0: ⇒ T0): T0

def toString(): String

final def wait(): Unit

final def wait(arg0: Long, arg1: Int): Unit

final def wait(arg0: Long): Unit

Inherited from Serializable

Inherited from Serializable

Inherited from AnyRef

Inherited from Any

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