

.. _sphx_glr_gallery_subplots_axes_and_figures_subplots_demo.py:


=============
Subplots Demo
=============

Examples illustrating the use of plt.subplots().

This function creates a figure and a grid of subplots with a single call, while
providing reasonable control over how the individual plots are created.  For
very refined tuning of subplot creation, you can still use add_subplot()
directly on a new figure.




.. rst-class:: sphx-glr-horizontal


    *

      .. image:: /gallery/subplots_axes_and_figures/images/sphx_glr_subplots_demo_001.png
            :scale: 47

    *

      .. image:: /gallery/subplots_axes_and_figures/images/sphx_glr_subplots_demo_002.png
            :scale: 47

    *

      .. image:: /gallery/subplots_axes_and_figures/images/sphx_glr_subplots_demo_003.png
            :scale: 47

    *

      .. image:: /gallery/subplots_axes_and_figures/images/sphx_glr_subplots_demo_004.png
            :scale: 47

    *

      .. image:: /gallery/subplots_axes_and_figures/images/sphx_glr_subplots_demo_005.png
            :scale: 47

    *

      .. image:: /gallery/subplots_axes_and_figures/images/sphx_glr_subplots_demo_006.png
            :scale: 47

    *

      .. image:: /gallery/subplots_axes_and_figures/images/sphx_glr_subplots_demo_007.png
            :scale: 47





.. code-block:: python


    import matplotlib.pyplot as plt
    import numpy as np

    # Simple data to display in various forms
    x = np.linspace(0, 2 * np.pi, 400)
    y = np.sin(x ** 2)

    plt.close('all')

    # Just a figure and one subplot
    f, ax = plt.subplots()
    ax.plot(x, y)
    ax.set_title('Simple plot')

    # Two subplots, the axes array is 1-d
    f, axarr = plt.subplots(2, sharex=True)
    f.suptitle('Sharing X axis')
    axarr[0].plot(x, y)
    axarr[1].scatter(x, y)

    # Two subplots, unpack the axes array immediately
    f, (ax1, ax2) = plt.subplots(1, 2, sharey=True)
    f.suptitle('Sharing Y axis')
    ax1.plot(x, y)
    ax2.scatter(x, y)

    # Three subplots sharing both x/y axes
    f, axarr = plt.subplots(3, sharex=True, sharey=True)
    f.suptitle('Sharing both axes')
    axarr[0].plot(x, y)
    axarr[1].scatter(x, y)
    axarr[2].scatter(x, 2 * y ** 2 - 1, color='r')
    # Bring subplots close to each other.
    f.subplots_adjust(hspace=0)
    # Hide x labels and tick labels for all but bottom plot.
    for ax in axarr:
        ax.label_outer()

    # row and column sharing
    f, ((ax1, ax2), (ax3, ax4)) = plt.subplots(2, 2, sharex='col', sharey='row')
    f.suptitle('Sharing x per column, y per row')
    ax1.plot(x, y)
    ax2.scatter(x, y)
    ax3.scatter(x, 2 * y ** 2 - 1, color='r')
    ax4.plot(x, 2 * y ** 2 - 1, color='r')

    # Four axes, returned as a 2-d array
    f, axarr = plt.subplots(2, 2)
    axarr[0, 0].plot(x, y)
    axarr[0, 0].set_title('Axis [0,0]')
    axarr[0, 1].scatter(x, y)
    axarr[0, 1].set_title('Axis [0,1]')
    axarr[1, 0].plot(x, y ** 2)
    axarr[1, 0].set_title('Axis [1,0]')
    axarr[1, 1].scatter(x, y ** 2)
    axarr[1, 1].set_title('Axis [1,1]')
    for ax in axarr.flat:
        ax.set(xlabel='x-label', ylabel='y-label')
    # Hide x labels and tick labels for top plots and y ticks for right plots.
    for ax in axarr.flat:
        ax.label_outer()

    # Four polar axes
    f, axarr = plt.subplots(2, 2, subplot_kw=dict(projection='polar'))
    axarr[0, 0].plot(x, y)
    axarr[0, 0].set_title('Axis [0,0]')
    axarr[0, 1].scatter(x, y)
    axarr[0, 1].set_title('Axis [0,1]')
    axarr[1, 0].plot(x, y ** 2)
    axarr[1, 0].set_title('Axis [1,0]')
    axarr[1, 1].scatter(x, y ** 2)
    axarr[1, 1].set_title('Axis [1,1]')
    # Fine-tune figure; make subplots farther from each other.
    f.subplots_adjust(hspace=0.3)

    plt.show()

**Total running time of the script:** ( 0 minutes  0.532 seconds)



.. container:: sphx-glr-footer


  .. container:: sphx-glr-download

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



  .. container:: sphx-glr-download

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

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

    `Generated by Sphinx-Gallery <https://sphinx-gallery.readthedocs.io>`_
