.. DO NOT EDIT.
.. THIS FILE WAS AUTOMATICALLY GENERATED BY SPHINX-GALLERY.
.. TO MAKE CHANGES, EDIT THE SOURCE PYTHON FILE:
.. "auto_examples/tutorials/tutorial_model.py"
.. LINE NUMBERS ARE GIVEN BELOW.

.. only:: html

    .. note::
        :class: sphx-glr-download-link-note

        :ref:`Go to the end <sphx_glr_download_auto_examples_tutorials_tutorial_model.py>`
        to download the full example code.

.. rst-class:: sphx-glr-example-title

.. _sphx_glr_auto_examples_tutorials_tutorial_model.py:


Model specification for the simple tutorial
===========================================

Example extracted from Ben-Akiva and Lerman (1985)

Michel Bierlaire, EPFL
Sun Jun 15 2025, 07:19:46

.. GENERATED FROM PYTHON SOURCE LINES 11-20

.. code-block:: Python


    from biogeme.expressions import Beta
    from tutorial_data import auto_time, transit_time

    asc_car = Beta('asc_car', 0, None, None, 0)
    b_time = Beta('b_time', 0, None, None, 0)
    utility_car = asc_car + b_time * auto_time
    utility_transit = b_time * transit_time


.. GENERATED FROM PYTHON SOURCE LINES 21-23

Next, we need to associate the utility function with the ID of the alternative. It is necessary to interpret
correctly the value of the variable `choice`. We use a Python dictionary to do that.

.. GENERATED FROM PYTHON SOURCE LINES 23-24

.. code-block:: Python

    utilities = {0: utility_car, 1: utility_transit}


.. _sphx_glr_download_auto_examples_tutorials_tutorial_model.py:

.. only:: html

  .. container:: sphx-glr-footer sphx-glr-footer-example

    .. container:: sphx-glr-download sphx-glr-download-jupyter

      :download:`Download Jupyter notebook: tutorial_model.ipynb <tutorial_model.ipynb>`

    .. container:: sphx-glr-download sphx-glr-download-python

      :download:`Download Python source code: tutorial_model.py <tutorial_model.py>`

    .. container:: sphx-glr-download sphx-glr-download-zip

      :download:`Download zipped: tutorial_model.zip <tutorial_model.zip>`


.. only:: html

 .. rst-class:: sphx-glr-signature

    `Gallery generated by Sphinx-Gallery <https://sphinx-gallery.github.io>`_