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  • matplotlib example

    # This file generates an old version of the matplotlib logo

    from __future__ import print_function
    # Above import not necessary for Python 3 onwards. Recommend taking this
    # out in examples in the future, since we should all move to Python 3.
    import matplotlib.pyplot as plt
    import numpy as np
    import matplotlib.cbook as cbook

    # convert data to mV
    datafile = cbook.get_sample_data('membrane.dat', asfileobj=False)
    print('loading', datafile)

    x = 1000 * 0.1 * np.fromstring(open(datafile, 'rb').read(), np.float32)
    # 0.0005 is the sample interval
    t = 0.0005 * np.arange(len(x))
    plt.figure(1, figsize=(7, 1), dpi=100)
    ax = plt.subplot(111, axisbg='y')
    plt.plot(t, x)
    plt.text(0.5, 0.5, 'ylHe', color='r',
             fontsize=40, fontname=['Courier', 'Bitstream Vera Sans Mono'],
             horizontalalignment='center',
             verticalalignment='center',
             transform=ax.transAxes,
             )
    plt.axis([1, 1.72, -60, 10])
    plt.gca().set_xticklabels([])
    plt.gca().set_yticklabels([])

    plt.show()

    输出结果:

    更多可视化连接:http://matplotlib.org/examples/index.html

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  • 原文地址:https://www.cnblogs.com/ylHe/p/6001739.html
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