.. _sphx_glr_gallery_ticks_and_spines_custom_ticker1.py: ============== Custom Ticker1 ============== The new ticker code was designed to explicitly support user customized ticking. The documentation http://matplotlib.org/api/ticker_api.html#module-matplotlib.ticker details this process. That code defines a lot of preset tickers but was primarily designed to be user extensible. In this example a user defined function is used to format the ticks in millions of dollars on the y axis .. image:: /gallery/ticks_and_spines/images/sphx_glr_custom_ticker1_001.png :align: center .. code-block:: python from matplotlib.ticker import FuncFormatter import matplotlib.pyplot as plt import numpy as np x = np.arange(4) money = [1.5e5, 2.5e6, 5.5e6, 2.0e7] def millions(x, pos): 'The two args are the value and tick position' return '$%1.1fM' % (x * 1e-6) formatter = FuncFormatter(millions) fig, ax = plt.subplots() ax.yaxis.set_major_formatter(formatter) plt.bar(x, money) plt.xticks(x, ('Bill', 'Fred', 'Mary', 'Sue')) plt.show() .. only :: html .. container:: sphx-glr-footer .. container:: sphx-glr-download :download:`Download Python source code: custom_ticker1.py ` .. container:: sphx-glr-download :download:`Download Jupyter notebook: custom_ticker1.ipynb ` .. only:: html .. rst-class:: sphx-glr-signature `Gallery generated by Sphinx-Gallery `_