org.encog.util.normalize.output
Class OutputFieldRangeMapped

java.lang.Object
  org.encog.util.normalize.output.BasicOutputField
      org.encog.util.normalize.output.OutputFieldRangeMapped

All Implemented Interfaces:

Serializable, OutputField, RequireTwoPass

public class OutputFieldRangeMapped
extends BasicOutputField
implements RequireTwoPass

A ranged mapped output field. This will scale the input so that it is between the high and low value.

See Also:

Serialized Form

Constructor Summary

OutputFieldRangeMapped()
Default constructor, used mainly for reflection.

OutputFieldRangeMapped(InputField f)
Create a range field with -1 and 1 as low/high.

OutputFieldRangeMapped(InputField field, double low, double high)
Construct a range mapped output field.

Method Summary

static double	calculate(double value, double min, double max, double hi, double lo) Calculate a ranged mapped value.
double	calculate(int subfield) Calculate this output field.
double	convertBack(double data) Convert a number back after its been normalized.
InputField	getField()
double	getHigh()
double	getLow()
int	getSubfieldCount()
void	rowInit() Not needed for this sort of output field.

Methods inherited from class org.encog.util.normalize.output.BasicOutputField

isIdeal, setIdeal

Methods inherited from class java.lang.Object

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

Constructor Detail

OutputFieldRangeMapped

public OutputFieldRangeMapped()

Default constructor, used mainly for reflection.

OutputFieldRangeMapped

public OutputFieldRangeMapped(InputField field,
                              double low,
                              double high)

Construct a range mapped output field.

Parameters:

field - The input field to base this on.

low - The low value.

high - The high value.

OutputFieldRangeMapped

public OutputFieldRangeMapped(InputField f)

Create a range field with -1 and 1 as low/high.

Parameters:

f - The input field to use.

Method Detail

calculate

public static double calculate(double value,
                               double min,
                               double max,
                               double hi,
                               double lo)

Calculate a ranged mapped value.

Parameters:

value - The to map.

min - The minimum that the value param can be.

max - The maximum that the value param can be.

hi - The high value to map into.

lo - The low value to map into.

Returns:

The mapped value.

calculate

public double calculate(int subfield)

Calculate this output field.

Specified by:

calculate in interface OutputField

Parameters:

subfield - Not used.

Returns:

The calculated value.

getField

public InputField getField()

Returns:

The field that this output is based on.

getHigh

public double getHigh()

Returns:

The high value of the range to map into.

getLow

public double getLow()

Returns:

The low value of the range to map into.

getSubfieldCount

public int getSubfieldCount()

Specified by:

getSubfieldCount in interface OutputField

Returns:

This field only produces one value, so this will return 1.

rowInit

public void rowInit()

Not needed for this sort of output field.

Specified by:

rowInit in interface OutputField

convertBack

public double convertBack(double data)

Convert a number back after its been normalized.

Parameters:

data - The number to convert back.

Returns:

The result.