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  • python学习小记

    python画的图表不能显示中文的时候,使用下面的代码可以解决这个问题:

    import matplotlib
    matplotlib.use('qt4agg')
    #指定默认字体
    matplotlib.rcParams['font.sans-serif'] = ['SimHei']
    matplotlib.rcParams['font.family']='sans-serif'

    画曲线的代码:

    import numpy as np
    import matplotlib.pyplot as plt
    from pylab import *
    
    import matplotlib
    matplotlib.use('qt4agg')
    #指定默认字体
    matplotlib.rcParams['font.sans-serif'] = ['SimHei']
    matplotlib.rcParams['font.family']='sans-serif'
    
    # evenly sampled time at 200ms intervals
    t = np.arange(1,10, 0.001)
    # red dashes, blue squares and green triangles
    plt.plot(t, t**(-0.5), 'r--', t, t**(-1), 'b-..', t, t**(-2), 'g.')
    
    plt.title('区间[1,+∞]的反常积分与p的取值关系',fontsize=16)
    
    plt.text(2, 0.1, r'p=2,收敛',color='green',fontsize=13)
    plt.text(3.8, 0.3, r'p=1,发散',color='blue',fontsize=13)
    plt.text(4.5, 0.55, r'p=0.5,发散',color='red',fontsize=13)
    
    ylim(0, 1)
    xlim(1, 10)
    plt.show()

    独热编码(One-Hot Encoding)

    http://blog.csdn.net/pipisorry/article/details/61193868

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  • 原文地址:https://www.cnblogs.com/captain-dl/p/9391632.html
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