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

    Click :ref:`here <sphx_glr_download_gallery_lines_bars_and_markers_scatter_hist.py>` to download the full example code
.. rst-class:: sphx-glr-example-title

.. _sphx_glr_gallery_lines_bars_and_markers_scatter_hist.py:


============================
Scatter plot with histograms
============================

Create a scatter plot with histograms to its sides.



.. image:: /gallery/lines_bars_and_markers/images/sphx_glr_scatter_hist_001.png
    :class: sphx-glr-single-img






.. code-block:: default

    import numpy as np
    import matplotlib.pyplot as plt

    # Fixing random state for reproducibility
    np.random.seed(19680801)

    # the random data
    x = np.random.randn(1000)
    y = np.random.randn(1000)

    # definitions for the axes
    left, width = 0.1, 0.65
    bottom, height = 0.1, 0.65
    spacing = 0.005


    rect_scatter = [left, bottom, width, height]
    rect_histx = [left, bottom + height + spacing, width, 0.2]
    rect_histy = [left + width + spacing, bottom, 0.2, height]

    # start with a rectangular Figure
    plt.figure(figsize=(8, 8))

    ax_scatter = plt.axes(rect_scatter)
    ax_scatter.tick_params(direction='in', top=True, right=True)
    ax_histx = plt.axes(rect_histx)
    ax_histx.tick_params(direction='in', labelbottom=False)
    ax_histy = plt.axes(rect_histy)
    ax_histy.tick_params(direction='in', labelleft=False)

    # the scatter plot:
    ax_scatter.scatter(x, y)

    # now determine nice limits by hand:
    binwidth = 0.25
    lim = np.ceil(np.abs([x, y]).max() / binwidth) * binwidth
    ax_scatter.set_xlim((-lim, lim))
    ax_scatter.set_ylim((-lim, lim))

    bins = np.arange(-lim, lim + binwidth, binwidth)
    ax_histx.hist(x, bins=bins)
    ax_histy.hist(y, bins=bins, orientation='horizontal')

    ax_histx.set_xlim(ax_scatter.get_xlim())
    ax_histy.set_ylim(ax_scatter.get_ylim())

    plt.show()


.. _sphx_glr_download_gallery_lines_bars_and_markers_scatter_hist.py:


.. only :: html

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



  .. container:: sphx-glr-download

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



  .. container:: sphx-glr-download

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


.. only:: html

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

    Keywords: matplotlib code example, codex, python plot, pyplot
    `Gallery generated by Sphinx-Gallery
    <https://sphinx-gallery.readthedocs.io>`_