Struct PGAAlgorithm
Defined in File pgapack.h
Struct Documentation
-
struct PGAAlgorithm
GA Algorithm Structure.
Public Members
-
int datatype
data type: binary, integer, or real
-
int optdir
direction of optimization
-
int tw
total number of words, full + partial
-
int fw
number of full (WL length) words
-
int eb
number of extra bits in last NOT full word
-
int PopSize
Number of strings to use
-
int NumAuxEval
Number of auxiliary evaluation values
-
int NumConstraint
Number of constraints
-
int SumConstraints
PGA_TRUE if no dominance-sorting for constraints
-
double Epsilon
Current epsilon for eps constraints
-
double Epsilon_0
Initial Epsilon for eps constraints
-
int EpsilonGeneration
Max Generation for epsilon constraints
-
double EpsilonExponent
Exponent for tightening epsilon
-
double EffEpsExponent
Effective Exponent for tightening epsilon.
-
int EpsTLambda
Generation lambda for dynamic exponent
-
int EpsilonTheta
Theta best individual of epsilon init
-
int StringLen
string lengths
-
int StoppingRule
Termination Criteria
-
int MaxIter
Maximum number of iterations to run
-
int MaxNoChange
Number of iters with no change before stopping
-
int MaxSimilarity
Percentage of pop the same before stopping.
-
int NumReplace
Number of string to replace each gen
-
int PopReplace
Method of choosing ind.s to copy to newpop.
-
int iter
iteration (generation) counter
-
int last_iter
Used by selection methods internally
-
int perm_idx
Index into scratch permute array
-
int ItersOfSame
Number of iterations with no change in best
-
int PercentSame
Percentage of pop that is homogeneous
-
int NoDuplicates
Don’t allow duplicate strings
-
int CrossoverType
Type of crossover for genetic algorithm
-
int CrossBoundedFlag
Confine alleles to given range (bound)
-
int CrossBounceFlag
Confine alleles to given range (bounce)
-
double CrossSBXEta
eta value for SBX
-
int CrossSBXOnce
SBX probability once for whole string
-
int SelectType
Type of selection for genetic algorithm
-
int SelectIndex
index of Select for next two individuals
-
int FitnessType
Type of fitness transformation used
-
int FitnessMinType
Transformation for minimization problems
-
int MixingType
Combination of crossover/mutation
-
int MutationType
Type of mutation used
-
int MutateIntegerValue
Multiplier to mutate Integer strings with.
-
int MutateBoundedFlag
Confine alleles to given range (bound)
-
int MutateBounceFlag
Confine alleles to given range (random)
-
double MutatePolyEta
Eta for polynomial mutation
-
double MutatePolyValue
Value for polynomial mutation
-
double TournamentSize
Number of participants in tournament
-
int RTRWindowSize
Window for restricted tournament select
-
int TournamentWithRepl
Tournament with / without replacement
-
int RandomizeSelect
Additional randomisation during select
-
int DEVariant
Differential evolution (DE) variant
-
int DENumDiffs
Number of differences for DE (1 or 2)
-
int DECrossoverType
Crossover type DE
-
int DEDitherPerIndividual
Per indidivual or per generation
-
double DEDither
Dither value centered around F
-
double DEScaleFactor
Scale Factor F for DE
-
double DEAuxFactor
Auxiliary Factor K for DE
-
double DECrossoverProb
Crossover probability Cr for DE
-
double DEJitter
Jitter interval DE (uniform dist)
-
double DEProbabilityEO
Either-Or-Probability for DE
-
double MutateRealValue
Multiplier to mutate Real strings with
-
double MutationProb
Starting mutation probability
-
double CrossoverProb
Crossover probability
-
double UniformCrossProb
Prob of bit select in uniform crossover
-
double PTournamentProb
Prob of selection in Prob.
Tournament
-
double FitnessRankMax
MAX value for use in ranking
-
double FitnessCmaxValue
Cmax value used to convert minimizations
-
double restartAlleleProb
prob of changing an allele in a restart
-
double TruncProportion
proportion for truncation selection
-
int NAMWindow
Win size for negative assortative mating
-
int restart
whether to use the restart operator
-
int restartFreq
frequency with which to restart
-
int *selected
array of indices for selection
-
int *sorted
array of sorted individual indices
-
size_t nrefdirs
Number of reference directions
-
void *refdirs
Reference directions for NSGA-III
-
void *normdirs
normalized reference directions
-
size_t ndpoints
Number of points in refdir point cloud
-
double dirscale
Scale factor for reference directions
-
int ndir_npart
Number Das Dennis partitions for refdir
-
size_t nrefpoints
Number of reference points
-
void *refpoints
Ref points on normalized hyperplane
-
void *extreme
Extreme vector for NSGA-III
-
int extreme_valid
PGA_TRUE of above is valid
-
double *utopian
Utopian vector for NSGA-III
-
int utopian_valid
PGA_TRUE of above is valid
-
double *nadir
nadir point for NSGA-III
-
double *worst
Worst point discovered so far
-
int worst_valid
PGA_TRUE of above is valid
-
size_t n_edges
Number of fixed edges
-
int symmetric
Fixed edges are symmetric?
-
PGAFixedEdge *edges
Fixed edges for edge crossover
-
PGAInteger (*r_edge)[2]
Right node + index into edges
-
FILE *OutputFile
Output file
-
char *OutFileName
Output filename
-
void *CustomData
For the user, not sent via MPI
-
PGAIndividual *oldpop
pointer to population (old)
-
PGAIndividual *newpop
pointer to population (new)
-
int datatype