首页import pandas as pd import numpy as np import winreg import sklearn from sklearn.linear_model import LinearRegression from sklearn.model_selection import train_test_split from sklearn.linear_model import Ridge###导入岭回归算法 from sklearn.metrics import r2_score import winreg

import pandas as pd import numpy as np import winreg import sklearn from sklearn.linear_model import LinearRegression from sklearn.model_selection import train_test_split from sklearn.linear_model import Ridge###导入岭回归算法 from sklearn.metrics import r2_score import winreg

时间: 2023-10-30 12:04:57 浏览: 172

python数据分析与可视化 import pandas as pd import numpy as np import m

python数据分析与可视化 python数据分析与可视化 import pandas as pd import numpy as np import matplotlib.pyplot as plt # 创建示例数据 data = pd.DataFrame({ 'A': np.random.randn(1000), 'B': np.random.randn(1000), 'C': np.random.randn(1000), }) # 计算每列的平均值 data_mean = data.mean() # 绘制直方图 data['A'].plot(kind='hist', bins=30, color='lightblue', edgecolor='black') # 设置标题和标签 plt.title('Histogram of A') plt.xlabel('Value') plt.ylabel('Frequency') # 显示图形 plt.show() 这段代码首先导入了必要的Python库，并创建了一个包含随机数的DataFram

你已经成功导入了所需的库：pandas、numpy、winreg、sklearn以及sklearn中的LinearRegression、train_test_split、Ridge和r2_score。现在你可以使用这些库中提供的功能来进行数据处理、建模和评估等任务。如果你需要进一步的帮助或有其他问题，请随时提问。

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