pyepo.model.copt.knapsack
=========================

.. py:module:: pyepo.model.copt.knapsack

.. autoapi-nested-parse::

   Knapsack problem



Attributes
----------

.. autoapisummary::

   pyepo.model.copt.knapsack.cost


Classes
-------

.. autoapisummary::

   pyepo.model.copt.knapsack.knapsackModel
   pyepo.model.copt.knapsack.knapsackModelRel


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

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

   Bases: :py:obj:`pyepo.model.copt.coptmodel.optCoptModel`


   This class is optimization model for knapsack problem

   .. attribute:: _model

      Pyomo model

      :type: PyOmo model

   .. attribute:: solver

      optimization solver in the background

      :type: str

   .. attribute:: weights

      weights of items

      :type: np.ndarray

   .. attribute:: capacity

      total capacity

      :type: np.ndarray

   .. attribute:: items

      list of item index

      :type: list


   .. py:attribute:: weights


   .. py:attribute:: capacity


   .. py:attribute:: items


   .. py:method:: _getModel()

      A method to build pyomo model



   .. 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 pyomo



   .. py:method:: relax()

      A forbidden method to relax MIP model



.. py:data:: cost