SimpleEA is a Haskell library for evolutionary algorithms. It is written to be easy to understand and use.

A simple example program using the library is included in AI/SimpleEA.hs. The documentation is also available at Hackage.

Given a function for evaluating a genome's fitness, a function for probabilistic selection among a pool of genomes, and recombination and mutation operators, an infinite list of generations is produced. You can choose to take a predefined number of these generations or takeWhile a predicate holds (e.g. that the fitness is below some value).

Utility functions for analyzing a run and for producing plotting data is included in AI/SimpleEA/Utils.hs.