Class GATools

Method Details

• getBinaryAlphabet

  public static FiniteAlphabet getBinaryAlphabet()

  Gets a Reference to the FlyWeight GA_Binary Alphabet. It contains the Symbols one and zero.

  Returns:

  the finite, flyweight Binary Alphabet

• one

  public static AtomicSymbol one()

  Returns:

  the GA_Binary symbol "one"

• createBinary

  public static SymbolList createBinary(String binarySequence) throws IllegalSymbolException

  Creates a SymbolList in the GABinary Alphabet

  Parameters:

  binarySequence - a String like "01010000101010101" with no white space

  Returns:

  a SymbolList parsed from binarySequence

  Throws:

  IllegalSymbolException - if a character other than 1 or 0 is found.

• zero

  public static AtomicSymbol zero()

  Returns:

  the GA_Binary symbol "zero"

• uniformMutationDistribution

  public static OrderNDistribution uniformMutationDistribution(FiniteAlphabet a) throws IllegalAlphabetException

  Makes a 1st order distribution which is infact uniform (equivalent to a uniform zero order distribution).

  Parameters:

  a - the zero order Alphabet which will be multiplied into the 1st order alphabet

  Returns:

  the "1st order" distribution

  Throws:

  IllegalAlphabetException - if the Distribution cannot be constructed from a.

• standardMutationDistribution

  public static OrderNDistribution standardMutationDistribution(FiniteAlphabet a) throws IllegalAlphabetException

  Makes a mutation Distribution where the probability of a Symbol being mutated to itself is zero and the probability of it being changed to any other Symbol in the Alphabet a is 1.0 / (a.size() - 1.0)

  Parameters:

  a - the FiniteAlphabet which mutations are sampled from.

  Returns:

  A Distribution suitable for use in a MutationFunction

  Throws:

  IllegalAlphabetException - if the Distribution cannot be made over the FiniteAlphabet