public static GenericClass selectClass(List<GenericClass> candidates) {
double r = Randomness.nextDouble();
double d =
Properties.RANK_BIAS
- Math.sqrt(
(Properties.RANK_BIAS * Properties.RANK_BIAS)
- (4.0 * (Properties.RANK_BIAS - 1.0) * r));
int length = candidates.size();
d = d / 2.0 / (Properties.RANK_BIAS - 1.0);
int index = (int) (length * d);
return candidates.get(index);
}
