Overview | Package | Class | Use | Tree | Deprecated | Index | Help
PREV CLASS NEXT CLASS | FRAMES NO FRAMES
SUMMARY: NESTED | FIELD | CONSTR | METHOD | DETAIL: FIELD | CONSTR | METHOD

## org.biojavax.ga.util
Class GATools

    java.lang.Object
      org.biojavax.ga.util.GATools

    public final class GATools

extends Object

Utility methods for the GA library

Since:
  1.5
Version:
  1.0
Author:
  Mark Schreiber

Constructor Summary
`GATools()`

Method Summary
`static SymbolList` | `createBinary(String binarySequence)` Creates a `SymbolList` in the GABinary `Alphabet`
`static FiniteAlphabet` | `getBinaryAlphabet()` Gets a Reference to the FlyWeight GA_Binary `Alphabet`.
`static AtomicSymbol` | `one()`
`static OrderNDistribution` | `standardMutationDistribution(FiniteAlphabet a)` 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)`
`static OrderNDistribution` | `uniformMutationDistribution(FiniteAlphabet a)` Makes a 1st order distribution which is infact uniform (equivalent to a uniform zero order distribution).
`static AtomicSymbol` | `zero()`

Methods inherited from class java.lang.Object
`clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait`

Constructor Detail

### GATools

    public GATools()

Method Detail

### 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`

Overview | Package | Class | Use | Tree | Deprecated | Index | Help
PREV CLASS NEXT CLASS | FRAMES NO FRAMES
SUMMARY: NESTED | FIELD | CONSTR | METHOD | DETAIL: FIELD | CONSTR | METHOD