org.encog.ml.prg.extension

Class ConstantPool

java.lang.Object

org.encog.ml.prg.extension.ConstantPool

All Implemented Interfaces:

java.io.Serializable, ProgramExtensionTemplate

public class ConstantPool
extends java.lang.Object
implements ProgramExtensionTemplate

Created by jeffh on 9/13/2016.

See Also:

Serialized Form

Field Summary

Fields

Modifier and Type	Field and Description
static double[]	COMMON_CONST

Fields inherited from interface org.encog.ml.prg.extension.ProgramExtensionTemplate

NO_PARAMS, NO_PREC

Constructor Summary

Constructors

Constructor and Description
ConstantPool() Construct with common constants, plus 100 random constants between -10 and 10.
ConstantPool(java.lang.String theName, double[] thePool) Construct for a specific constant pool.
ConstantPool(java.lang.String theName, double[] thePool, int count, GenerateRandom rnd, double low, double high) Construct for a specific constant pool and random constants.

Method Summary

Modifier and Type	Method and Description
ExpressionValue	evaluate(ProgramNode actual) Evaluate the specified actual program node, using this opcode template.
int	getChildNodeCount()
int	getDataSize()
java.lang.String	getName()
NodeType	getNodeType()
java.util.List<ParamTemplate>	getParams()
int	getPrecedence()
ParamTemplate	getReturnValue()
boolean	isPossibleReturnType(EncogProgramContext context, ValueType rtn) Determines if the specified return type is a possible return type.
boolean	isVariable()
void	randomize(java.util.Random rnd, java.util.List<ValueType> desiredType, ProgramNode actual, double minValue, double maxValue) Randomize this actual tree node.

Methods inherited from class java.lang.Object

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

Field Detail

COMMON_CONST

public static double[] COMMON_CONST

Constructor Detail

ConstantPool

public ConstantPool(java.lang.String theName,
                    double[] thePool)

Construct for a specific constant pool.

Parameters:

theName - The name of the pool.

thePool - The pool of values.

ConstantPool

public ConstantPool(java.lang.String theName,
                    double[] thePool,
                    int count,
                    GenerateRandom rnd,
                    double low,
                    double high)

Construct for a specific constant pool and random constants.

Parameters:

theName - The name of the pool.

thePool - The pool of values.

count - The number of random values to generate, total size is length of pool + count.

rnd - Random number generator.

low - The low end of the random range.

high - The high end of the random range.

ConstantPool

public ConstantPool()

Construct with common constants, plus 100 random constants between -10 and 10.

Method Detail

evaluate

public ExpressionValue evaluate(ProgramNode actual)

Description copied from interface: ProgramExtensionTemplate

Evaluate the specified actual program node, using this opcode template.

Specified by:

evaluate in interface ProgramExtensionTemplate

Parameters:

actual - The tree node in the actual program.

Returns:

The result of the evaluation.

getChildNodeCount

public int getChildNodeCount()

Specified by:

getChildNodeCount in interface ProgramExtensionTemplate

Returns:

Get the number of child nodes that this opcode requires.

getDataSize

public int getDataSize()

Specified by:

getDataSize in interface ProgramExtensionTemplate

Returns:

The size of extra data that is stored by this node.

getName

public java.lang.String getName()

Specified by:

getName in interface ProgramExtensionTemplate

Returns:

Get the name of this opcode.

getNodeType

public NodeType getNodeType()

Specified by:

getNodeType in interface ProgramExtensionTemplate

Returns:

The node type.

getParams

public java.util.List<ParamTemplate> getParams()

Specified by:

getParams in interface ProgramExtensionTemplate

Returns:

The parameters (child nodes) required by this node.

getPrecedence

public int getPrecedence()

Specified by:

getPrecedence in interface ProgramExtensionTemplate

Returns:

The operator precedence.

getReturnValue

public ParamTemplate getReturnValue()

Specified by:

getReturnValue in interface ProgramExtensionTemplate

Returns:

The return value for this opcode.

isPossibleReturnType

public boolean isPossibleReturnType(EncogProgramContext context,
                                    ValueType rtn)

Description copied from interface: ProgramExtensionTemplate

Determines if the specified return type is a possible return type.

Specified by:

isPossibleReturnType in interface ProgramExtensionTemplate

Parameters:

context - The program context.

rtn - The potential return type to check.

Returns:

True, if the specified type is a possible return type.

isVariable

public boolean isVariable()

Specified by:

isVariable in interface ProgramExtensionTemplate

Returns:

Returns true if this node is variable.

randomize

public void randomize(java.util.Random rnd,
                      java.util.List<ValueType> desiredType,
                      ProgramNode actual,
                      double minValue,
                      double maxValue)

Description copied from interface: ProgramExtensionTemplate

Randomize this actual tree node.

Specified by:

randomize in interface ProgramExtensionTemplate

Parameters:

rnd - Random number generator.

desiredType - The desired type of the randomization, if allowed.

actual - The actual program node to randomize.

minValue - The minimum value to use for randomization.

maxValue - The maximum value to use for randomization.