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• About
• Status
• Related packages
  • Blog posts
• Installation
• Dependencies
• Usage examples
• API
• Authors
• License

About

Genetic programming helpers & strategies (tree based & multi-expression programming).

This package does not (yet) provide a complete GP framework and is largely focused on the following operations:

• General GP setup configuration
• Genotype / chromosome / AST generation
• Phenotype / chromosome translation
• Offspring generation
  • Crossover (single-point, uniform)
  • Mutation

Does not specifically deal with:

• Population management
• AST evaluation
• Fitness computation

References:

• Evolutionary failures (blog post)
• Multi Expression Programming (Oltean, Dumitrescu)

Status

ALPHA - bleeding edge / work-in-progress

Search or submit any issues for this package

Related packages

• @thi.ng/defmulti - Dynamic, extensible multiple dispatch via user supplied dispatch function.
• @thi.ng/pointfree - Pointfree functional composition / Forth style stack execution engine
• @thi.ng/sexpr - Extensible S-Expression parser & runtime infrastructure
• @thi.ng/shader-ast - DSL to define shader code in TypeScript and cross-compile to GLSL, JS and other targets
• @thi.ng/zipper - Functional tree editing, manipulation & navigation

Blog posts

• Evolutionary failures (Part 1)

Installation

yarn add @thi.ng/gp

ESM import:

import * as gp from "@thi.ng/gp";

Browser ESM import:

<script type="module" src="https://esm.run/@thi.ng/gp"></script>

JSDelivr documentation

For Node.js REPL:

const gp = await import("@thi.ng/gp");

Package sizes (brotli'd, pre-treeshake): ESM: 1.28 KB

Dependencies

• @thi.ng/api
• @thi.ng/errors
• @thi.ng/math
• @thi.ng/random
• @thi.ng/transducers
• @thi.ng/zipper

Note: @thi.ng/api is in most cases a type-only import (not used at runtime)

Usage examples

One project in this repo's /examples directory is using this package:

| Screenshot | Description | Live demo | Source | |:----------------------------------------------------------------------------------------------------------------------|:---------------------------------------------------------|:-----------------------------------------------------|:------------------------------------------------------------------------------------------| | | Evolutionary shader generation using genetic programming | Demo | Source |

API

Generated API docs

TODO

Authors

• Karsten Schmidt

If this project contributes to an academic publication, please cite it as:

@misc{thing-gp,
  title = "@thi.ng/gp",
  author = "Karsten Schmidt",
  note = "https://thi.ng/gp",
  year = 2019
}

License

© 2019 - 2026 Karsten Schmidt // Apache License 2.0