.. 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_gallery_images_contours_and_fields_spy_demos.py:
=========
Spy Demos
=========
Plot the sparsity pattern of arrays.
.. code-block:: default
import matplotlib.pyplot as plt
import numpy as np
fig, axs = plt.subplots(2, 2)
ax1 = axs[0, 0]
ax2 = axs[0, 1]
ax3 = axs[1, 0]
ax4 = axs[1, 1]
x = np.random.randn(20, 20)
x[5, :] = 0.
x[:, 12] = 0.
ax1.spy(x, markersize=5)
ax2.spy(x, precision=0.1, markersize=5)
ax3.spy(x)
ax4.spy(x, precision=0.1)
plt.show()
.. image:: /gallery/images_contours_and_fields/images/sphx_glr_spy_demos_001.png
:class: sphx-glr-single-img
------------
References
""""""""""
The use of the following functions, methods and classes is shown
in this example:
.. code-block:: default
import matplotlib
matplotlib.axes.Axes.spy
matplotlib.pyplot.spy
.. rst-class:: sphx-glr-script-out
Out:
.. code-block:: none
.. _sphx_glr_download_gallery_images_contours_and_fields_spy_demos.py:
.. only :: html
.. container:: sphx-glr-footer
:class: sphx-glr-footer-example
.. container:: sphx-glr-download sphx-glr-download-python
:download:`Download Python source code: spy_demos.py `
.. container:: sphx-glr-download sphx-glr-download-jupyter
:download:`Download Jupyter notebook: spy_demos.ipynb `
.. only:: html
.. rst-class:: sphx-glr-signature
Keywords: matplotlib code example, codex, python plot, pyplot
`Gallery generated by Sphinx-Gallery
`_