Closed LONG-tian21 closed 3 months ago
确实是不够准确,标签在计算cov时,忽略了,不会报错,但是有警告。
请继续批评指正
On Sat, Feb 17, 2024 at 5:41 PM LONG-tian21 @.***> wrote:
姜老师: 你好,在本节代码中,154行我觉得存在一点问题,如果直接采用iris_sns.cov() 进行协方差计算存在问题,有一列数据是string格式,我觉得应当把iris数据集的最后一列去除掉以后再进行计算,改为 iris_sns.iloc[:,:-1].cov()。 1.png (view on web) https://github.com/Visualize-ML/Book3_Elements-of-Mathematics/assets/147016054/3f0fb153-e4b2-4f93-8914-54b7b23de9db 2.png (view on web) https://github.com/Visualize-ML/Book3_Elements-of-Mathematics/assets/147016054/d55c5828-3963-46b5-b8f8-6ed56d4de664 3.png (view on web) https://github.com/Visualize-ML/Book3_Elements-of-Mathematics/assets/147016054/83fb5c0c-ba2a-4b63-8be5-4a467821276f
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姜老师: 你好,在本节代码中,154行我觉得存在一点问题,如果直接采用
![3](https://github.com/Visualize-ML/Book3_Elements-of-Mathematics/assets/147016054/83fb5c0c-ba2a-4b63-8be5-4a467821276f)
iris_sns.cov()
进行协方差计算存在问题,有一列数据是string格式,我觉得应当把iris数据集的最后一列去除掉以后再进行计算,改为iris_sns.iloc[:,:-1].cov()
。