de.lmu.ifi.dbs.elki.utilities.scaling

Class MinusLogScaling

java.lang.Object

de.lmu.ifi.dbs.elki.utilities.scaling.MinusLogScaling

All Implemented Interfaces:

ScalingFunction, StaticScalingFunction

public class MinusLogScaling
extends Object
implements StaticScalingFunction

Scaling function to invert values by computing -1 * Math.log(x)

Author:

Erich Schubert

Constructor Summary

Constructors

Constructor and Description
MinusLogScaling()

Method Summary

Methods

Modifier and Type	Method and Description
double	getMax() Get maximum resulting value.
double	getMin() Get minimum resulting value.
double	getScaled(double value) Transform a given value using the scaling function.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

MinusLogScaling

public MinusLogScaling()

Method Detail

getScaled

public double getScaled(double value)

Description copied from interface: ScalingFunction

Transform a given value using the scaling function.

Specified by:

getScaled in interface ScalingFunction

Parameters:

value - Original value

Returns:

Scaled value

getMin

public double getMin()

Description copied from interface: ScalingFunction

Get minimum resulting value. May be Double.NaN or Double.NEGATIVE_INFINITY.

Specified by:

getMin in interface ScalingFunction

Returns:

Minimum resulting value.

getMax

public double getMax()

Description copied from interface: ScalingFunction

Get maximum resulting value. May be Double.NaN or Double.POSITIVE_INFINITY.

Specified by:

getMax in interface ScalingFunction

Returns:

Maximum resulting value.