StringArrayFeaturizer

Instance Constructors

new StringArrayFeaturizer(fieldIdx: Int, columnName: String, namespaceHash: Int, mask: Int)

fieldIdx
input field index.
columnName
used as feature name prefix.
namespaceHash
pre-hashed namespace.
mask
bit mask applied to final hash.

Value Members

final def !=(arg0: Any): Boolean

Definition Classes
AnyRef → Any
final def ##(): Int

Definition Classes
AnyRef → Any
final def ==(arg0: Any): Boolean

Definition Classes
AnyRef → Any
final def asInstanceOf[T0]: T0

Definition Classes
Any
def clone(): AnyRef

Attributes
protected[java.lang]
Definition Classes
AnyRef
Annotations
@throws( ... )
val columnName: String

used as feature name prefix.
used as feature name prefix.

Definition Classes
StringArrayFeaturizer → Featurizer
final def eq(arg0: AnyRef): Boolean

Definition Classes
AnyRef
def equals(arg0: Any): Boolean

Definition Classes
AnyRef → Any
def featurize(row: Row, indices: ArrayBuilder[Int], values: ArrayBuilder[Double]): Unit

Featurize a single row.
Featurize a single row.
row
input row.
indices
output indices.
values
output values.

Definition Classes
StringArrayFeaturizer → Featurizer
Note
this interface isn't very Scala-esce, but it avoids lots of allocation. Also due to SparseVector limitations we don't support 64bit indices (e.g. indices are signed 32bit ints)
val fieldIdx: Int

input field index.
input field index.

Definition Classes
StringArrayFeaturizer → Featurizer
def finalize(): Unit

Attributes
protected[java.lang]
Definition Classes
AnyRef
Annotations
@throws( classOf[java.lang.Throwable] )
final def getClass(): Class[_]

Definition Classes
AnyRef → Any
def hashCode(): Int

Definition Classes
AnyRef → Any
lazy val hasher: VowpalWabbitMurmurWithPrefix

Initialize hasher that already pre-hashes the column prefix.
Initialize hasher that already pre-hashes the column prefix.

Attributes
protected
Definition Classes
Featurizer
final def isInstanceOf[T0]: Boolean

Definition Classes
Any
val mask: Int

bit mask applied to final hash.
val namespaceHash: Int

pre-hashed namespace.
final def ne(arg0: AnyRef): Boolean

Definition Classes
AnyRef
final def notify(): Unit

Definition Classes
AnyRef
final def notifyAll(): Unit

Definition Classes
AnyRef
final def synchronized[T0](arg0: ⇒ T0): T0

Definition Classes
AnyRef
def toString(): String

Definition Classes
AnyRef → Any
final def wait(): Unit

Definition Classes
AnyRef
Annotations
@throws( ... )
final def wait(arg0: Long, arg1: Int): Unit

Definition Classes
AnyRef
Annotations
@throws( ... )
final def wait(arg0: Long): Unit

Definition Classes
AnyRef
Annotations
@throws( ... )

Related Doc: package featurizer

class StringArrayFeaturizer extends Featurizer

Instance Constructors

new StringArrayFeaturizer(fieldIdx: Int, columnName: String, namespaceHash: Int, mask: Int)

Value Members

final def !=(arg0: Any): Boolean

final def ##(): Int

final def ==(arg0: Any): Boolean

final def asInstanceOf[T0]: T0

def clone(): AnyRef

val columnName: String

final def eq(arg0: AnyRef): Boolean

def equals(arg0: Any): Boolean

def featurize(row: Row, indices: ArrayBuilder[Int], values: ArrayBuilder[Double]): Unit

val fieldIdx: Int

def finalize(): Unit

final def getClass(): Class[_]

def hashCode(): Int

lazy val hasher: VowpalWabbitMurmurWithPrefix

final def isInstanceOf[T0]: Boolean

val mask: Int

val namespaceHash: Int

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 Featurizer

Inherited from Serializable

Inherited from Serializable

Inherited from AnyRef

Inherited from Any

Ungrouped