![The univariate Box-Cox transformation](https://blogs.sas.com/content/iml/files/2022/08/BoxCoxUni3-640x336.png)
A SAS customer asked how to use the Box-Cox transformation to normalize a single variable. Recall that a normalizing transformation is a function that attempts to convert a set of data to be as nearly normal as possible. For positive-valued data, introductory statistics courses often mention the log transformation or