radiate-rust 0.3.0

A Rust library for genetic algorithms and artificial evolution.
Documentation 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43

use rand::random;

use crate::NumericGene;
use crate::Chromosome;

use super::Crossover;


pub struct MeanCrossover {
    pub rate: f32,
}

impl MeanCrossover {
    pub fn new(rate: f32) -> Self {
        MeanCrossover { rate }
    }
}

impl<G, A> Crossover<G, A> for MeanCrossover 
where 
    G: NumericGene<G, A>
{
    fn cross_rate(&self) -> f32 {
        self.rate
    }

    fn cross_chromosomes(
        &self,
        chrom_one: &mut Chromosome<G, A>,
        chrom_two: &mut Chromosome<G, A>
    ) -> i32 {
        let mut count = 0;

        for (gene_one, gene_two) in chrom_one.iter_mut().zip(chrom_two.iter()) {
            if random::<f32>() < self.rate {
                *gene_one = gene_one.mean(gene_two);
                count += 1;
            }
        }

        count
    }
}