public class Parity extends GPProblem implements SimpleProblemForm
The Parity family evolves a boolean function on n sets of bits, which returns true if the number of 1's is even (for even-parity) or odd (for odd-parity), false otherwise.
Parameters
| base.data classname, inherits or == ec.app.parity.ParityData |
(the class for the prototypical GPData object for the Parity problem) |
| base.even bool = true (default) or false |
(is this even-parity (as opposed to odd-parity)?) |
| base.bits 2 >= int <= 31 |
(The number of data bits) |
Parameter bases
| base.data | species (the GPData object) |
| Modifier and Type | Field and Description |
|---|---|
int |
bits |
boolean |
doEven |
int |
numBits |
static String |
P_EVEN |
static String |
P_NUMBITS |
private static long |
serialVersionUID |
int |
totalSize |
| Constructor and Description |
|---|
Parity() |
| Modifier and Type | Method and Description |
|---|---|
void |
evaluate(EvolutionState state,
Individual ind,
int subpopulation,
int threadnum)
Evaluates the individual in ind, if necessary (perhaps
not evaluating them if their evaluated flags are true),
and sets their fitness appropriately.
|
void |
setup(EvolutionState state,
Parameter base)
Sets up the object by reading it from the parameters stored
in state, built off of the parameter base base.
|
clone, defaultBasecanEvaluate, closeContacts, describe, describe, finishEvaluating, initializeContacts, prepareToEvaluate, reinitializeContactsequals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, waitdescribeprivate static final long serialVersionUID
public static final String P_NUMBITS
public static final String P_EVEN
public boolean doEven
public int numBits
public int totalSize
public int bits
public void setup(EvolutionState state, Parameter base)
PrototypeFor prototypes, setup(...) is typically called once for the prototype instance; cloned instances do not receive the setup(...) call. setup(...) may be called more than once; the only guarantee is that it will get called at least once on an instance or some "parent" object from which it was ultimately cloned.
public void evaluate(EvolutionState state, Individual ind, int subpopulation, int threadnum)
SimpleProblemFormevaluate in interface SimpleProblemFormCopyright © 2014 Evolutionary Computation Laboratory at George Mason University. All rights reserved.