MOEA Framework 2.12
API Specification

org.moeaframework.core.operator.binary
Class BitFlip

java.lang.Object
  extended by org.moeaframework.core.operator.binary.BitFlip
All Implemented Interfaces:
Variation

public class BitFlip
extends Object
implements Variation

Bit flip mutation operator. Each bit is flipped (switched from a 0 to a 1, or vice versa) using the specified probability.

This operator is type-safe.


Constructor Summary
BitFlip(double probability)
          Constructs a bit flip operator.
 
Method Summary
static void evolve(BinaryVariable variable, double probability)
          Mutates the specified variable using bit flip mutation.
 Solution[] evolve(Solution[] parents)
          Evolves one or more parent solutions (specified by getArity) and produces one or more child solutions.
 int getArity()
          Returns the number of solutions that must be supplied to the evolve method.
 double getProbability()
          Returns the probability of flipping a bit.
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 

Constructor Detail

BitFlip

public BitFlip(double probability)
Constructs a bit flip operator.

Parameters:
probability - the probability of flipping a bit
Method Detail

getProbability

public double getProbability()
Returns the probability of flipping a bit.

Returns:
the probability of flipping a bit

evolve

public Solution[] evolve(Solution[] parents)
Description copied from interface: Variation
Evolves one or more parent solutions (specified by getArity) and produces one or more child solutions. By contract, the parents must not be modified. The copy constructor should be used to create copies of the parents with these copies subsequently modified.

Specified by:
evolve in interface Variation
Parameters:
parents - the array of parent solutions
Returns:
an array of child solutions

evolve

public static void evolve(BinaryVariable variable,
                          double probability)
Mutates the specified variable using bit flip mutation.

Parameters:
variable - the variable to be mutated

getArity

public int getArity()
Description copied from interface: Variation
Returns the number of solutions that must be supplied to the evolve method.

Specified by:
getArity in interface Variation
Returns:
the number of solutions that must be supplied to the evolve method

MOEA Framework 2.12
API Specification

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Licensed under the GNU Lesser General Public License.
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