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Ex. 3.5 #95

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szcf-weiya opened this issue Mar 22, 2018 · 7 comments
Closed

Ex. 3.5 #95

szcf-weiya opened this issue Mar 22, 2018 · 7 comments
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exercise ridge ridge regression solved
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Solutions 3

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@szcf-weiya
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selection_655
@szcf-weiya szcf-weiya added this to the Solutions 3 milestone Mar 23, 2018
@szcf-weiya
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image

@szcf-weiya
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image

@szcf-weiya szcf-weiya added the ridge ridge regression label Apr 28, 2018
@xiang-c
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xiang-c commented Jun 15, 2019

3.4节用\bar{y}估计\beta_0, 答案里\beta^c_0 =\bar{y},为什么\beta_0等于\beta^c_0再减去一串？

@szcf-weiya
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3.4节用\bar{y}估计\beta_0, 答案里\beta^c_0 =\bar{y},为什么\beta_0等于\beta^c_0再减去一串？

by equation 1

@alpaca202204
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第二张图式（3）是对beta0c求偏导吧，不是beta0

@szcf-weiya
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@alpaca202204 谢谢，有时候手写写得比较快，没注意

@liuzifengsjtu
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0df67aea3c89641a190cef36ca41ff4
我有一个比较作弊的方法，供大家参考，嘻嘻嘻

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exercise ridge ridge regression solved
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@szcf-weiya @xiang-c @liuzifengsjtu @alpaca202204