:py:mod:`cobra.flux_analysis.helpers`
=====================================

.. py:module:: cobra.flux_analysis.helpers

.. autoapi-nested-parse::

   Helper functions for all flux analysis methods.



Module Contents
---------------


Functions
~~~~~~~~~

.. autoapisummary::

   cobra.flux_analysis.helpers.normalize_cutoff



.. py:function:: normalize_cutoff(model: cobra.Model, zero_cutoff: Optional[float] = None) -> float

   Return a valid zero cutoff value.

   :param model: The model to operate on.
   :type model: cobra.Model
   :param zero_cutoff: The zero cutoff value. If not specified, defaults to
                       `model.tolerance` (default None).
   :type zero_cutoff: positive float, optional

   :returns: The normalized zero cutoff value.
   :rtype: float

   :raises ValueError: If the specified `zero_cutoff` is lesser than `model.tolerance`.