Installation
pip install parametrix
Example
The following example shows how to use Param as a base class for a parameter class that enforces positivity:
import jax.numpy as jnp
from parametrix import Param
class PositiveOnlyParam(Param):
def __init__(self, value):
super().__init__(jnp.log(value))
@property
def value(self):
return jnp.exp(self.raw_value)
The backing values of Params are always stored as jax.Arrays, meaning that they will automatically be picked up as learnable parameters by libraries like Equinox.
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.
Documentation
API documentation is available at Read the Docs.
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