绘制每行数据，使用semilogy绘制对数坐标轴

https://blog.csdn.net/AwesomeP/article/details/124975721

不将首行当作 index（标题）

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df = pd.read_csv('example.csv', header=None)

Iterator

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first_5_rows = df.head(5)
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# 绘制每行数据，使用semilogy绘制对数坐标轴
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for index, row in first_5_rows.iterrows():
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    plt.semilogy(row.index, row.values, label=f'Row {index}')