.. _pylab_examples-date_demo_rrule: pylab_examples example code: date_demo_rrule.py =============================================== .. plot:: /home/tcaswell/other_source/matplotlib/doc/mpl_examples/pylab_examples/date_demo_rrule.py :: #!/usr/bin/env python """ 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://moin.conectiva.com.br/DateUtil for help with rrules """ import matplotlib.pyplot as plt from matplotlib.dates import YEARLY, DateFormatter, rrulewrapper, RRuleLocator, drange import numpy as np import datetime # 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) labels = ax.get_xticklabels() plt.setp(labels, rotation=30, fontsize=10) plt.show() Keywords: python, matplotlib, pylab, example, codex (see :ref:`how-to-search-examples`)