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java.lang.Object | +--ec.gp.GPNodeConstraints
A GPNodeConstraints is a Clique which defines constraint information common to many different GPNode functions, namely return types, child types, and number of children. GPNodeConstraints have unique names by which they are identified.
In adding new things to GPNodeConstraints, you should ask yourself the following questions: first, is this something that takes up too much memory to store in GPNodes themselves? second, is this something that needs to be accessed very rapidly, so cannot be implemented as a method call in a GPNode? third, can this be shared among different GPNodes, even ones representing different functions?
Parameters
base.size int >= 1 |
(number of node constraints) |
base.n.name String |
(name of node constraint n) |
base.n.returns String |
(return type for node constraint n) |
base.n.size int >= 1 |
(number of child arguments for node constraint n) |
base.n.child.m String |
(name of type for child argument m of node constraint n) |
base.prob float >= 0.0 |
(auxillary probability of selection -- used by ec.gp.build.PTC1 and ec.gp.build.PTC2) |
Field Summary | |
static java.util.Hashtable |
all
A repository of all the GPNodeConstraints in the system. |
GPType[] |
childtypes
The children types for a GPNode |
byte |
constraintNumber
The byte value of the constraints -- we can only have 256 of them |
static GPNodeConstraints[] |
constraints
|
static float |
DEFAULT_PROBABILITY
|
java.lang.String |
name
The name of the GPNodeConstraints object -- this is NOT the name of the GPNode |
static byte |
numConstraints
|
static java.lang.String |
P_CHILD
|
static java.lang.String |
P_NAME
|
static java.lang.String |
P_PROBABILITY
|
static java.lang.String |
P_RETURNS
|
static java.lang.String |
P_SIZE
|
float |
probabilityOfSelection
Probability of selection -- an auxillary measure mostly used by PTC1/PTC2 right now |
GPType |
returntype
The return type for a GPNode |
static int |
SIZE_OF_BYTE
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Constructor Summary | |
GPNodeConstraints()
|
Method Summary | |
static GPNodeConstraints |
constraintsFor(java.lang.String constraintsName,
EvolutionState state)
You must guarantee that after calling constraintsFor(...) one or several times, you call state.output.exitIfErrors() once. |
void |
setup(EvolutionState state,
Parameter base)
This must be called after the GPTypes have been set up. |
static void |
setupConstraints(EvolutionState state,
Parameter base)
Sets up all the GPNodeConstraints, loading them from the parameter file. |
java.lang.String |
toString()
|
Methods inherited from class java.lang.Object |
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait |
Field Detail |
public static final int SIZE_OF_BYTE
public static final java.lang.String P_NAME
public static final java.lang.String P_RETURNS
public static final java.lang.String P_CHILD
public static final java.lang.String P_SIZE
public static final java.lang.String P_PROBABILITY
public static final float DEFAULT_PROBABILITY
public float probabilityOfSelection
public byte constraintNumber
public GPType returntype
public GPType[] childtypes
public java.lang.String name
public static java.util.Hashtable all
public static GPNodeConstraints[] constraints
public static byte numConstraints
Constructor Detail |
public GPNodeConstraints()
Method Detail |
public java.lang.String toString()
toString
in class java.lang.Object
public static void setupConstraints(EvolutionState state, Parameter base)
public final void setup(EvolutionState state, Parameter base)
setup
in interface Setup
public static GPNodeConstraints constraintsFor(java.lang.String constraintsName, EvolutionState state)
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