pyepo.model.grb.knapsack
========================

.. py:module:: pyepo.model.grb.knapsack

.. autoapi-nested-parse::

   Knapsack problem



Attributes
----------

.. autoapisummary::

   pyepo.model.grb.knapsack._HAS_GUROBI
   pyepo.model.grb.knapsack.cost


Classes
-------

.. autoapisummary::

   pyepo.model.grb.knapsack.knapsackModel
   pyepo.model.grb.knapsack.knapsackModelRel


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

.. py:data:: _HAS_GUROBI
   :value: True


.. py:class:: knapsackModel(weights, capacity)

   Bases: :py:obj:`pyepo.model.grb.grbmodel.optGrbModel`


   This class is optimization model for knapsack problem

   .. attribute:: _model

      Gurobi model

      :type: GurobiPy model

   .. attribute:: weights

      Weights of items

      :type: np.ndarray / list

   .. attribute:: capacity

      Total capacity

      :type: np.ndarray / listy

   .. attribute:: items

      List of item index

      :type: list


   .. py:attribute:: weights


   .. py:attribute:: capacity


   .. py:attribute:: items


   .. py:method:: _getModel()

      A method to build Gurobi model

      :returns: optimization model and variables
      :rtype: tuple



   .. py:method:: relax()

      A method to get linear relaxation model



.. py:class:: knapsackModelRel(weights, capacity)

   Bases: :py:obj:`knapsackModel`


   This class is relaxed optimization model for knapsack problem.


   .. py:method:: _getModel()

      A method to build Gurobi



   .. py:method:: relax()

      A forbidden method to relax MIP model



.. py:data:: cost