摘要：Data screening is the most important technique to check the nature of the data. One of the methods to screen the data is the transformation method. There are a lot of transformations but the famous one is the Box-Cox Transformation. The purpose of this study is to find the alternative way of transformation by making some modification of the original Box-Cox formula. As we know, the Box- Cox transformation method only transform the data if and only if the data in a positive values. If the values in the analysis are negative, the formula of the Box-Cox cannot be used. This problem always occur when the researcher want to transform the data which the values is negative. In this methodology section, we will build an alternative method to solve the problem if the data in the study are negative.
关键词：Box-Cox transformation;modified of Box-Cox transformation
