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#[macro_use]
extern crate colour;
#[macro_use]
extern crate itertools;
extern crate rand;
mod optimizer;
pub use optimizer::{job_config, swarm_config, PSO};
#[cfg(test)]
mod tests {
use super::*;
use job_config::JobConfig;
use std::f64::consts::PI;
use swarm_config::{SwarmConfig, TransientBehavior};
#[test]
fn exp_sin_cost_fn() {
let num_variables = 3;
let mut jc = JobConfig::new(num_variables);
jc.max_iterations(1000);
jc.update_console(Some(500));
jc.variable_bound([-2.0 * PI, 2.0 * PI]);
let mut tb = TransientBehavior::new();
tb.stochastic_behavior(3.0, 5);
tb.momentum_mode(0);
tb.motion_mode(3);
let mut sc = SwarmConfig::new();
sc.synergic_behavior(0.4, 128);
sc.motion_coefficients(0.5, 0.6, 1.0);
sc.num_particles(128);
sc.set_transient_behavior(tb);
let pso = PSO::from_swarm_config(16, true, &sc);
let min = pso.run_job(jc, move |pt: &[f64]| -> f64 {
let mut sum = 0.0;
let mut sin_sum = 0.0;
for i in 0..num_variables {
sum += pt[i].abs();
sin_sum += pt[i].powi(2).sin();
}
sum * (-1.0 * sin_sum).exp()
});
println!("minimum of: {}, located at: {:?}", min.0, min.1);
}
}