breeze/breeze.numerics/Scaling

Scaling

object Scaling extends Scaling
Companion
class
trait Scaling
class Object
trait Matchable
class Any

Value members

Inherited methods

def computeScaleDelta(scores: Array[Double]): Int

Computes the log power of two we'd need to scale by so that the max double is between (2 ** scaleConstant, 2 ** -scaleConstant).

Computes the log power of two we'd need to scale by so that the max double is between (2 ** scaleConstant, 2 ** -scaleConstant).

Inherited from
Scaling
def determineScale(score: Double, oldScale: Int): Int
Inherited from
Scaling
def scaleArray(scores: Array[Double], currentScale: Int): Int

Ensures that the max double is between (2scaleConstant,2-scaleConstant), scaling the array as necessary.

Ensures that the max double is between (2scaleConstant,2-scaleConstant), scaling the array as necessary.

Returns

newScale

Inherited from
Scaling
def scaleArrayToScale(scores: Array[Double], currentScale: Int, targetScale: Int): Unit
Inherited from
Scaling
def scaleValue(score: Double, currentScale: Int, targetScale: Int): Double

Converts the scaled value into "normal" space

Converts the scaled value into "normal" space

Inherited from
Scaling
def sumArrays(src: Array[Double], srcScale: Int, dest: Array[Double], destScale: Int): Int

Sums src into dest assuming they're at different scales. src may be longer than dest, which is useful for allocating a large work buffer.

Sums src into dest assuming they're at different scales. src may be longer than dest, which is useful for allocating a large work buffer.

Returns

the new scale

Inherited from
Scaling
def toLogSpace(score: Double, currentScale: Int): Double
Inherited from
Scaling
def unscaleValue(score: Double, currentScale: Int): Double

Converts the scaled value into "normal" space

Converts the scaled value into "normal" space

Inherited from
Scaling

Concrete fields

val scaleConstant: Int