Evolutionary.jl

The package Evolutionary aims to provide a library for evolutionary optimization. It provides implementation of $(\mu/\rho \; \stackrel{+}{,} \;\lambda)$-Evolution Strategy, $(\mu/\mu_I, \;\lambda)$-Covariance Matrix Adaptation Evolution Strategy, Genetic Algorithm, and Differential Evolution as well as a rich set of mutation, recombination, crossover and selection functions.

Getting started

To install the package just type

] add Evolutionary

A simple example of using the GA algorithm to find minimum of the Sphere function.

julia> using Evolutionary
julia> result = Evolutionary.optimize(
             x -> sum(x.^2), ones(3),
             GA(populationSize = 100, selection = susinv,
                crossover = DC, mutation = PLM()))
 * Status: success

 * Candidate solution
    Minimizer:  [-0.019585294214011895, 0.01802946383612436, 0.018901602082270874]
    Minimum:    0.0010659158769440306
    Iterations: 42

 * Found with
    Algorithm: GA[P=100,x=0.8,μ=0.1,ɛ=0]

 * Convergence measures
    |f(x) - f(x')| = 0.0 ≤ 1.0e-12

 * Work counters
    Seconds run:   0.1169 (vs limit Inf)
    Iterations:    42
    f(x) calls:    4300