.. 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_ticks_and_spines_date_demo_rrule.py: =============== Date Demo Rrule =============== Show how to use an rrule instance to make a custom date ticker - here we put a tick mark on every 5th easter See https://dateutil.readthedocs.io/en/stable/ for help with rrules .. image:: /gallery/ticks_and_spines/images/sphx_glr_date_demo_rrule_001.png :class: sphx-glr-single-img .. code-block:: default import matplotlib.pyplot as plt from matplotlib.dates import (YEARLY, DateFormatter, rrulewrapper, RRuleLocator, drange) import numpy as np import datetime # Fixing random state for reproducibility np.random.seed(19680801) # tick every 5th easter rule = rrulewrapper(YEARLY, byeaster=1, interval=5) loc = RRuleLocator(rule) formatter = DateFormatter('%m/%d/%y') date1 = datetime.date(1952, 1, 1) date2 = datetime.date(2004, 4, 12) delta = datetime.timedelta(days=100) dates = drange(date1, date2, delta) s = np.random.rand(len(dates)) # make up some random y values fig, ax = plt.subplots() plt.plot_date(dates, s) ax.xaxis.set_major_locator(loc) ax.xaxis.set_major_formatter(formatter) ax.xaxis.set_tick_params(rotation=30, labelsize=10) plt.show() .. _sphx_glr_download_gallery_ticks_and_spines_date_demo_rrule.py: .. only :: html .. container:: sphx-glr-footer :class: sphx-glr-footer-example .. container:: sphx-glr-download :download:`Download Python source code: date_demo_rrule.py ` .. container:: sphx-glr-download :download:`Download Jupyter notebook: date_demo_rrule.ipynb ` .. only:: html .. rst-class:: sphx-glr-signature Keywords: matplotlib code example, codex, python plot, pyplot `Gallery generated by Sphinx-Gallery `_