{"id":28705058,"url":"https://github.com/gerlero/parametrix","last_synced_at":"2026-06-03T20:31:22.955Z","repository":{"id":294554158,"uuid":"987343779","full_name":"gerlero/parametrix","owner":"gerlero","description":"🪄  Flax-like computed parameters for bare JAX (and 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align=\"center\"\u003e\n\u003ca href=\"https://github.com/gerlero/parametrix\"\u003e\u003cimg src=\"https://raw.githubusercontent.com/gerlero/parametrix/main/logo.png\" alt=\"Parametrix logo\" width=250/\u003e\u003c/a\u003e\n\n**[`flax.nnx.Param`](https://flax.readthedocs.io/en/latest/api_reference/flax.nnx/variables.html#flax.nnx.Param)-like computed parameters for bare [JAX](https://github.com/jax-ml/jax) (and [Equinox](https://github.com/patrick-kidger/equinox)).**\n\n[![Documentation](https://img.shields.io/readthedocs/parametrix)](https://parametrix.readthedocs.io/)\n[![CI](https://github.com/gerlero/parametrix/actions/workflows/ci.yml/badge.svg)](https://github.com/gerlero/parametrix/actions/workflows/ci.yml)\n[![Codecov](https://codecov.io/gh/gerlero/parametrix/branch/main/graph/badge.svg)](https://codecov.io/gh/gerlero/parametrix)\n[![Ruff](https://img.shields.io/endpoint?url=https://raw.githubusercontent.com/astral-sh/ruff/main/assets/badge/v2.json)](https://github.com/astral-sh/ruff)\n[![ty](https://img.shields.io/endpoint?url=https://raw.githubusercontent.com/astral-sh/ty/main/assets/badge/v0.json)](https://github.com/astral-sh/ty)\n[![uv](https://img.shields.io/endpoint?url=https://raw.githubusercontent.com/astral-sh/uv/main/assets/badge/v0.json)](https://github.com/astral-sh/uv)\n[![Publish](https://github.com/gerlero/parametrix/actions/workflows/pypi-publish.yml/badge.svg)](https://github.com/gerlero/parametrix/actions/workflows/pypi-publish.yml)\n[![PyPI](https://img.shields.io/pypi/v/parametrix)](https://pypi.org/project/parametrix/)\n[![PyPI - Python Version](https://img.shields.io/pypi/pyversions/parametrix)](https://pypi.org/project/parametrix/)\n\u003c/div\u003e\n\n## Installation\n\n```bash\npip install parametrix\n```\n\n## Example\n\nThe following example shows how to use [`Param`](https://parametrix.readthedocs.io) as a base class for a parameter class that enforces positivity:\n\n```python\nimport jax.numpy as jnp\nfrom parametrix import Param\n\nclass PositiveOnlyParam(Param):\n    def __init__(self, value):\n        super().__init__(jnp.log(value))\n\n    @property\n    def value(self):\n        return jnp.exp(self.raw_value)\n```\n\nThe backing values of `Param`s are always stored as `jax.Array`s, meaning that they will automatically be picked up as learnable parameters by libraries like Equinox.\n\n`Param` objects also behave like numeric types, so that they are able to be used within models and any other functions without having to make any changes to the code.\n\n## Documentation\n\nAPI documentation is available at [Read the Docs](https://parametrix.readthedocs.io/).\n","project_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fgerlero%2Fparametrix","html_url":"https://awesome.ecosyste.ms/projects/github.com%2Fgerlero%2Fparametrix","lists_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fgerlero%2Fparametrix/lists"}