python pandas归一化与反归一化操作

Dear 丶 2024-03-29 14:23 9阅读 0赞

import numpy as np
    import pandas as pd
    import matplotlib.pylab as plt
    
    if __name__ == '__main__':
        """
        原数据
        """
        df = pd.DataFrame({'A': [10, 20, 30], 'B': [1, 2, 6]})
        # 图表
        plt.plot(df)
        plt.show()
    
        """
        归一化
        """
        # 最小值
        minimum = df.min()
        # 最大值
        maximum = df.max()
    
        df_zero_one = (df - minimum) / (maximum - minimum)
    
        # 图表
        plt.plot(df_zero_one)
        plt.show()
    
        """
        反归一化
        """
        df_un_zero_one = (maximum - minimum) * df_zero_one + minimum
    
        # 图表
        plt.plot(df_un_zero_one)
        plt.show()

import numpy as np
    import pandas as pd
    import matplotlib.pylab as plt
    
    if __name__ == '__main__':
        """
        原数据
        """
        df = pd.DataFrame({'A': [10, 20, 30], 'B': [1, 2, 6]})
        # 图表
        subplot_1 = plt.subplot(2, 2, 1)
        subplot_1.plot(df)
    
        """
        归一化
        """
        # 最小值
        minimum = df.min()
        # 最大值
        maximum = df.max()
    
        df_zero_one = (df - minimum) / (maximum - minimum)
    
        # 图表
        subplot_2 = plt.subplot(2, 2, 2)
        subplot_2.plot(df_zero_one)
    
        """
        反归一化
        """
        df_un_zero_one = (maximum - minimum) * df_zero_one + minimum
    
        # 图表
        subplot_3 = plt.subplot(2, 2, 3)
        subplot_3.plot(df_un_zero_one)
    
        plt.show()

![11e127e974af4927a24f6389eb38bfe1.png][]

[11e127e974af4927a24f6389eb38bfe1.png]: https://image.dandelioncloud.cn/pgy_files/images/2024/03/28/0b8dcc122e7a410aa6b190f6828650e8.png