com.penguinwerks.jodene.data
Class Scaler

java.lang.Object
  com.penguinwerks.jodene.data.Scaler

All Implemented Interfaces:

java.io.Serializable

Direct Known Subclasses:

ClassificationScaler, FactorScaler, RangeScaler

public abstract class Scaler

extends java.lang.Object

implements java.io.Serializable

An abstract scaler. Scalers scale raw values to appropriate values. Concrete implementations of scaler will apply some kind of scaling techniuqe - i.e. dividing by a factor or taking the logarithm, to place a value in an acceptable range. Scalers can be chained. An example would be a scaler that takes the logarithm of a value and then uses another sclaer to divide by a factor of 2 so the resulting value is between 0.0 and 1.0.

Author:

Paul Hoehne

See Also:

Serialized Form

Constructor Summary

Scaler()

Method Summary

void	addScaler(Scaler scaler) Chaines another scaler to this scaler.
abstract double	scale(double input) The abstract scaling method to implement.

Methods inherited from class java.lang.Object

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

Constructor Detail

Scaler

public Scaler()

Method Detail

scale

public abstract double scale(double input)

The abstract scaling method to implement.

Parameters:

input - The value to scale

Returns:

The scaled value.

addScaler

public void addScaler(Scaler scaler)

Chaines another scaler to this scaler.

Parameters:

scaler - Another scaler.