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数据标准化-对数处理

时间:2016-11-10 19:19:08      阅读:457      评论:0      收藏:0      [点我收藏+]
一直在思考在对数据进行处理时,对数化比如 log2或者是log10处理的目的,感觉下面的说法很有道理:
Log transformation is just one way to make the skewed distribution less skewed. For parametric statistical methods,
it helps to satisfy the assumption of inferential statistics. For non-parametric methods, it does not matter if the data
is skewed or not. Log is not the only way to make the transformation, box-cox method could help you find the best
transformation for your data. however log is indeed the most powerful one.

数据标准化-对数处理

原文:http://www.cnblogs.com/lmj-sky/p/6037842.html

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