数据标准化-对数处理

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.