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

.. only:: html

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

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

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

.. _sphx_glr_intro_scipy_auto_examples_plot_detrend.py:


===================
Detrending a signal
===================

:func:`scipy.signal.detrend` removes a linear trend.

.. GENERATED FROM PYTHON SOURCE LINES 10-11

Generate a random signal with a trend

.. GENERATED FROM PYTHON SOURCE LINES 11-17

.. code-block:: Python

    import numpy as np

    t = np.linspace(0, 5, 100)
    rng = np.random.default_rng()
    x = t + rng.normal(size=100)








.. GENERATED FROM PYTHON SOURCE LINES 18-19

Detrend

.. GENERATED FROM PYTHON SOURCE LINES 19-23

.. code-block:: Python

    import scipy as sp

    x_detrended = sp.signal.detrend(x)








.. GENERATED FROM PYTHON SOURCE LINES 24-25

Plot

.. GENERATED FROM PYTHON SOURCE LINES 25-32

.. code-block:: Python

    import matplotlib.pyplot as plt

    plt.figure(figsize=(5, 4))
    plt.plot(t, x, label="x")
    plt.plot(t, x_detrended, label="x_detrended")
    plt.legend(loc="best")
    plt.show()



.. image-sg:: /intro/scipy/auto_examples/images/sphx_glr_plot_detrend_001.png
   :alt: plot detrend
   :srcset: /intro/scipy/auto_examples/images/sphx_glr_plot_detrend_001.png
   :class: sphx-glr-single-img






.. rst-class:: sphx-glr-timing

   **Total running time of the script:** (0 minutes 0.050 seconds)


.. _sphx_glr_download_intro_scipy_auto_examples_plot_detrend.py:

.. only:: html

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

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

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

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

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

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

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


.. only:: html

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

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