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Book1_Ch09_Page6 代码5与正文有出入 #190

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AwayGithub opened this issue Oct 14, 2024 · 2 comments
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Book1_Ch09_Page6 代码5与正文有出入 #190

AwayGithub opened this issue Oct 14, 2024 · 2 comments

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@AwayGithub
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AwayGithub commented Oct 14, 2024

正文中说“第一个方差相当于粽子方差,第二个方差相当于样本无偏方差”。
但代码中第二个方差ddof为0,第一个方差ddof为1才是样本无偏方差。
此外,我没有搜索到“粽子方差”这个名词。是指ddof=0时的方差吗?
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@Visualize-ML
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Visualize-ML commented Oct 14, 2024 via email

@AwayGithub
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不好意思,这里应该没有问题,是我想错了
不过“粽子方差”应为“总体方差的无偏估计”

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