Parametrization API reference

Please note that parametrization is still a work in progress and changes are on their way (including for this documentation)! We are trying to update it to make it simpler and simpler to use (all feedbacks are welcome ;) ), with the side effect that there will be breaking changes.

The aim of parametrization is to specify what are the parameters that the optimization should be performed upon. The parametrization subpackage will help you do thanks to:

• the parameter modules (accessed by the shortcut nevergrad.p) providing classes that should be used to specify each parameter.

• the ops module (accessed through ng.ops) providing experimental objects for modifying a parameter behavior (eg: casting to int, adding complex constraints).

• the FolderFunction which helps transform any code into a Python function in a few lines. This can be especially helpful to optimize parameters in non-Python 3.6+ code (C++, Octave, etc…) or parameters in scripts.

Parameters

Here are the current types of parameters currently provided:

Parameter API

Operators

These experimental operators are designed to be instantiated and called with a parameter as input, creating a new parameter with the required behavior.