Trait genevo::genetic::Fitness
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pub trait Fitness: Eq + Ord + Clone + Debug + Sized { fn zero() -> Self; fn abs_diff(&self, other: &Self) -> Self; }
A Fitness value is used to determine the quality of a Genotype.
Fitness values should have an ordering, also called ranking.
Make sure the following statement holds:
A Genotype with a Fitness value of f1 performs better than another
Genotype with a Fitness value of f2 if f1 > f2.
For multi-objective Fitness values either operator::GeneticOperators
suitable for multi-objective optimization are used or the implementation
of the multi-objective Fitness value additionally implements the
AsScalar trait. Using single-objective optimization for multi-objective
problems has some drawbacks though.
Required Methods
fn zero() -> Self
Returns the zero value of this Fitness value.
The internal value should be 0.
fn abs_diff(&self, other: &Self) -> Self
Returns the absolute difference between this Fitness value and the
other one, i.e. result = |self| - |other|