数据标准化-对数处理

时间：2016-11-10 19:21:27 阅读：273 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.

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

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周排行