.. 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_scales_symlog_demo.py: =========== Symlog Demo =========== Example use of symlog (symmetric log) axis scaling. .. image:: /gallery/scales/images/sphx_glr_symlog_demo_001.png :class: sphx-glr-single-img .. code-block:: python import matplotlib.pyplot as plt import numpy as np dt = 0.01 x = np.arange(-50.0, 50.0, dt) y = np.arange(0, 100.0, dt) plt.subplot(311) plt.plot(x, y) plt.xscale('symlog') plt.ylabel('symlogx') plt.grid(True) plt.gca().xaxis.grid(True, which='minor') # minor grid on too plt.subplot(312) plt.plot(y, x) plt.yscale('symlog') plt.ylabel('symlogy') plt.subplot(313) plt.plot(x, np.sin(x / 3.0)) plt.xscale('symlog') plt.yscale('symlog', linthreshy=0.015) plt.grid(True) plt.ylabel('symlog both') plt.tight_layout() plt.show() .. _sphx_glr_download_gallery_scales_symlog_demo.py: .. only :: html .. container:: sphx-glr-footer :class: sphx-glr-footer-example .. container:: sphx-glr-download :download:`Download Python source code: symlog_demo.py ` .. container:: sphx-glr-download :download:`Download Jupyter notebook: symlog_demo.ipynb ` .. only:: html .. rst-class:: sphx-glr-signature Keywords: matplotlib code example, codex, python plot, pyplot `Gallery generated by Sphinx-Gallery `_