static Tuple2 <int> GetDataWindowOffsetAndSize(int count, Chromosome chrom)
{
int offset = MathEx.Clamp(0, count - 1, (int)(chrom.TrainingOffsetPct * count));
int size = MathEx.Clamp(1, count - offset, (int)(chrom.TrainingSizePct * count));
return(Tuple2.Create(offset, size));
}
public static Tuple2 <T> SelectTwoAccordingToQuality <T>(IList <T> items, Func <T, double> quality)
{
var possibleFirsts = items;
var first = SelectOneAccordingToQuality(possibleFirsts, quality);
var possibleSeconds = items.Except(Lists.Create(first)).ToList();
var second = SelectOneAccordingToQuality(possibleSeconds, quality);
return(Tuple2.Create(first, second));
}
internal static Tuple2 <Chromosome> CrossOverChromosomes(Chromosome a, Chromosome b)
{
Debug.Assert(a.NetworkType == b.NetworkType);
Debug.Assert(a.OrderInMixture == b.OrderInMixture);
Func <Gene, Gene, Tuple2 <Gene> > crossGenes = (x, y) => {
Debug.Assert(x.Name == y.Name);
return(QuqeUtil.WithProb(0.5) ? Tuple2.Create(x, y) : Tuple2.Create(y, x));
};
return(CrossOver(a.Genes, b.Genes, crossGenes, genes => new Chromosome(a.NetworkType, genes, a.OrderInMixture)));
}