Genetix

Mix.install([
  {:kino_explorer, "~> 0.1.20"},
  {:genetix, "~> 0.1"}
])

Section

  defmodule OneMax do
    @behaviour Genetix.Problem
    alias Genetix.Types.Chromosome

    @impl true
    def genotype(opts \\ []) do
      # Notice that in this case, we use `size` as a hyperparameter to define the gene size.
      size = Keyword.get(opts, :size, 10)
      genes = for _ <- 1..42, do: Enum.random(0..1)
      %Chromosome{genes: genes, size: size}
    end

    @impl true
    def fitness_function(chromosome, _opts \\ []), do: Enum.sum(chromosome.genes)

    @impl true
    def terminate?([best | _], _opts \\ []) do
      best.fitness == best.size
    end
  end

Genetix.run(Genetix.Problems.OneMax, size: 100)