ec.breed
Class ForceBreedingPipeline
java.lang.Object
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+--ec.BreedingSource
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+--ec.BreedingPipeline
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+--ec.breed.ForceBreedingPipeline
- All Implemented Interfaces:
- java.lang.Cloneable, Prototype, RandomChoiceChooser, java.io.Serializable, Setup, SteadyStateBSourceForm
- public class ForceBreedingPipeline
- extends BreedingPipeline
ForceBreedingPipeline has one source. To fill its quo for produce(...),
ForceBreedingPipeline repeatedly forces its source to produce exactly numInds
individuals at a time, except possibly the last time, where the number of
individuals its source produces may be as low as 1. This is useful for forcing
Crossover to produce only one individual, or mutation to produce 2 individuals
always, etc.
Typical Number of Individuals Produced Per produce(...) call
Determined by base.num-inds
Number of Sources
1
Parameters
base.num-inds
int >= 1 |
(The number of individuals this breeding pipeline will force its
source to produce each tim in order to fill the quo for produce(...).) |
Default Base
breed.force
- See Also:
- Serialized Form
Method Summary |
Parameter |
defaultBase()
Returns the default base for this prototype. |
int |
numSources()
Returns the number of sources to this pipeline. |
int |
produce(int min,
int max,
int start,
int subpopulation,
Individual[] inds,
EvolutionState state,
int thread)
Produces n individuals from the given subpopulation
and puts them into inds[start...start+n-1],
where n = Min(Max(q,min),max), where q is the "typical" number of
individuals the BreedingSource produces in one shot, and returns
n. |
void |
setup(EvolutionState state,
Parameter base)
Sets up the BreedingPipeline. |
int |
typicalIndsProduced()
Returns the max of typicalIndsProduced() of all its children |
Methods inherited from class java.lang.Object |
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
P_NUMINDS
public static final java.lang.String P_NUMINDS
P_FORCE
public static final java.lang.String P_FORCE
numInds
public int numInds
ForceBreedingPipeline
public ForceBreedingPipeline()
defaultBase
public Parameter defaultBase()
- Description copied from interface:
Prototype
- Returns the default base for this prototype.
This should generally be implemented by building off of the static base()
method on the DefaultsForm object for the prototype's package. This should
be callable during setup(...).
numSources
public int numSources()
- Description copied from class:
BreedingPipeline
- Returns the number of sources to this pipeline. Called during
BreedingPipeline's setup. Be sure to return a value > 0, or
DYNAMIC_SOURCES which indicates that setup should check the parameter
file for the parameter "num-sources" to make its determination.
- Overrides:
numSources
in class BreedingPipeline
setup
public void setup(EvolutionState state,
Parameter base)
- Description copied from class:
BreedingSource
- Sets up the BreedingPipeline. You can use state.output.error here
because the top-level caller promises to call exitIfErrors() after calling
setup. Note that probability might get modified again by
an external source if it doesn't normalize right.
The most common modification is to normalize it with some other
set of probabilities, then set all of them up in increasing summation;
this allows the use of the fast static BreedingSource-picking utility
method, BreedingSource.pickRandom(...). In order to use this method,
for example, if four
breeding source probabilities are {0.3, 0.2, 0.1, 0.4}, then
they should get normalized and summed by the outside owners
as: {0.3, 0.5, 0.6, 1.0}.
- Overrides:
setup
in class BreedingPipeline
- Following copied from class:
ec.BreedingSource
- See Also:
Prototype.setup(EvolutionState,Parameter)
typicalIndsProduced
public int typicalIndsProduced()
- Returns the max of typicalIndsProduced() of all its children
- Overrides:
typicalIndsProduced
in class BreedingPipeline
produce
public int produce(int min,
int max,
int start,
int subpopulation,
Individual[] inds,
EvolutionState state,
int thread)
throws java.lang.CloneNotSupportedException
- Description copied from class:
BreedingSource
- Produces n individuals from the given subpopulation
and puts them into inds[start...start+n-1],
where n = Min(Max(q,min),max), where q is the "typical" number of
individuals the BreedingSource produces in one shot, and returns
n. max must be >= min, and min must be >= 1. For example, crossover
might typically produce two individuals, tournament selection might typically
produce a single individual, etc.
- Overrides:
produce
in class BreedingSource