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空值是如何确定的? #6

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Tongzhenguo opened this issue Dec 1, 2016 · 6 comments
Closed

空值是如何确定的? #6

Tongzhenguo opened this issue Dec 1, 2016 · 6 comments

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@Tongzhenguo
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请问大神,您代码中将特征值小于0的判为空值是怎么确定的?是数据城堡运营告知的?还是您根据常识?

@wepe
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wepe commented Dec 1, 2016

因为预处理的时候就将缺失的用负值填充了

@Tongzhenguo
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不太懂您的意思,您是说原来的赛题数据就已经做过负值填充了对吧?

@wepe
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wepe commented Dec 1, 2016

不是,我处理的时候把缺失的用负值标志了。缺失这个从原始数据可以知道的

@wepe
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wepe commented Dec 1, 2016

新数据我就不太清楚了,如果是你说的那样,那就不用填充了

@Tongzhenguo
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ok,thanks

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