PolynomialExpansion

Transform vector features by expanding them into a polynomial space, which is formulated by an n-degree combination of original dimensions.

Missing values are transformed to zero vectors.

When using aggregated feature summary from a previous session, vectors of different dimensions are transformed to zero vectors and FeatureRejection.WrongDimension rejections are reported.

Linear Supertypes

Serializable, Serializable, SettingsBuilder, AnyRef, Any

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
def apply(name: String, degree: Int = 2, expectedLength: Int = 0): Transformer[Array[Double], Int, Int]

Create a new PolynomialExpansion instance.
Create a new PolynomialExpansion instance.
degree
the polynomial degree to expand, which should be greater than or equal to 1
expectedLength
expected length of the input vectors, or 0 to infer from data
final def asInstanceOf[T0]: T0

Definition Classes
Any
def clone(): AnyRef

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

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

Definition Classes
AnyRef → Any
def expand(v: Array[Double], degree: Int): Array[Double]
def finalize(): Unit

Attributes
protected[java.lang]
Definition Classes
AnyRef
Annotations
@throws( classOf[java.lang.Throwable] )
def fromSettings(setting: Settings): Transformer[Array[Double], Int, Int]

Create a new PolynomialExpansion from a settings object
Create a new PolynomialExpansion from a settings object
setting
Settings object

Definition Classes
PolynomialExpansion → SettingsBuilder
final def getClass(): Class[_]

Definition Classes
AnyRef → Any
def hashCode(): Int

Definition Classes
AnyRef → Any
final def isInstanceOf[T0]: Boolean

Definition Classes
Any
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 transformers

object PolynomialExpansion extends SettingsBuilder with Serializable

Value Members

final def !=(arg0: Any): Boolean

final def ##(): Int

final def ==(arg0: Any): Boolean

def apply(name: String, degree: Int = 2, expectedLength: Int = 0): Transformer[Array[Double], Int, Int]

final def asInstanceOf[T0]: T0

def clone(): AnyRef

final def eq(arg0: AnyRef): Boolean

def equals(arg0: Any): Boolean

def expand(v: Array[Double], degree: Int): Array[Double]

def finalize(): Unit

def fromSettings(setting: Settings): Transformer[Array[Double], Int, Int]

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 SettingsBuilder

Inherited from AnyRef

Inherited from Any

Ungrouped