A Box-Cox Power Transformation allows you to transform data to match a normal distribution. It is not a guarantee of normality. It is a quick way of transforming data to better fit a control chart.

Median regression is used increasingly in many different areas of applications. The usual median regression estimating equations are derived from minimizing the least absolute deviations (LAD).

Box-Cox power transformations are used to transform a set of observations to symmetry. A measure of location of the original data is obtained by applying the inverse transformation to the center of ...