.. DO NOT EDIT. .. THIS FILE WAS AUTOMATICALLY GENERATED BY SPHINX-GALLERY. .. TO MAKE CHANGES, EDIT THE SOURCE PYTHON FILE: .. "examples/mlearning/regression_model/plot_gp_regression.py" .. LINE NUMBERS ARE GIVEN BELOW. .. only:: html .. note:: :class: sphx-glr-download-link-note Click :ref:`here ` to download the full example code .. rst-class:: sphx-glr-example-title .. _sphx_glr_examples_mlearning_regression_model_plot_gp_regression.py: GP regression ============= We want to approximate a discipline with two inputs and two outputs: - :math:`y_1=1+2x_1+3x_2` - :math:`y_2=-1-2x_1-3x_2` over the unit hypercube :math:`[0,1]\times[0,1]`. .. GENERATED FROM PYTHON SOURCE LINES 32-44 .. code-block:: default from __future__ import annotations from gemseo.api import configure_logger from gemseo.api import create_design_space from gemseo.api import create_discipline from gemseo.api import create_scenario from gemseo.mlearning.api import create_regression_model from numpy import array configure_logger() .. rst-class:: sphx-glr-script-out .. code-block:: none .. GENERATED FROM PYTHON SOURCE LINES 45-49 Create the discipline to learn ------------------------------ We can implement this analytic discipline by means of the :class:`~gemseo.disciplines.analytic.AnalyticDiscipline` class. .. GENERATED FROM PYTHON SOURCE LINES 49-54 .. code-block:: default expressions = {"y_1": "1+2*x_1+3*x_2", "y_2": "-1-2*x_1-3*x_2"} discipline = create_discipline( "AnalyticDiscipline", name="func", expressions=expressions ) .. GENERATED FROM PYTHON SOURCE LINES 55-58 Create the input sampling space ------------------------------- We create the input sampling space by adding the variables one by one. .. GENERATED FROM PYTHON SOURCE LINES 58-62 .. code-block:: default design_space = create_design_space() design_space.add_variable("x_1", l_b=0.0, u_b=1.0) design_space.add_variable("x_2", l_b=0.0, u_b=1.0) .. GENERATED FROM PYTHON SOURCE LINES 63-68 Create the learning set ----------------------- We can build a learning set by means of a :class:`~gemseo.core.doe_scenario.DOEScenario` with a full factorial design of experiments. The number of samples can be equal to 9 for example. .. GENERATED FROM PYTHON SOURCE LINES 68-73 .. code-block:: default scenario = create_scenario( [discipline], "DisciplinaryOpt", "y_1", design_space, scenario_type="DOE" ) scenario.execute({"algo": "fullfact", "n_samples": 9}) .. rst-class:: sphx-glr-script-out .. code-block:: none INFO - 14:47:52: INFO - 14:47:52: *** Start DOEScenario execution *** INFO - 14:47:52: DOEScenario INFO - 14:47:52: Disciplines: func INFO - 14:47:52: MDO formulation: DisciplinaryOpt INFO - 14:47:52: Optimization problem: INFO - 14:47:52: minimize y_1(x_1, x_2) INFO - 14:47:52: with respect to x_1, x_2 INFO - 14:47:52: over the design space: INFO - 14:47:52: +------+-------------+-------+-------------+-------+ INFO - 14:47:52: | name | lower_bound | value | upper_bound | type | INFO - 14:47:52: +------+-------------+-------+-------------+-------+ INFO - 14:47:52: | x_1 | 0 | None | 1 | float | INFO - 14:47:52: | x_2 | 0 | None | 1 | float | INFO - 14:47:52: +------+-------------+-------+-------------+-------+ INFO - 14:47:52: Solving optimization problem with algorithm fullfact: INFO - 14:47:52: ... 0%| | 0/9 [00:00` .. container:: sphx-glr-download sphx-glr-download-jupyter :download:`Download Jupyter notebook: plot_gp_regression.ipynb ` .. only:: html .. rst-class:: sphx-glr-signature `Gallery generated by Sphinx-Gallery `_