什么是 Python 中的数据规范化

def stand_demo():
    """
    标准化
    :return:
    """
    # 1. 获取数据
    data = pd.read_csv('dating.txt')
    data = data.iloc[:, :3]
    print('data:\n', data)
 
    # 2.实例化一个转换器类
    transfer = StandardScaler()
    # 3.调用fit_transform()
    data_new = transfer.fit_transform(data)
    print('data_new:\n', data_new)
    return None