.. _pyplots-annotation_basic:

pyplots example code: annotation_basic.py
=========================================

[`source code <annotation_basic.py>`_]

::

    import numpy as np
    import matplotlib.pyplot as plt
    
    fig = plt.figure()
    ax = fig.add_subplot(111)
    
    t = np.arange(0.0, 5.0, 0.01)
    s = np.cos(2*np.pi*t)
    line, = ax.plot(t, s, lw=2)
    
    ax.annotate('local max', xy=(2, 1), xytext=(3, 1.5),
                arrowprops=dict(facecolor='black', shrink=0.05),
                )
    
    ax.set_ylim(-2,2)
    plt.show()
    

Keywords: python, matplotlib, pylab, example, codex (see :ref:`how-to-search-examples`)