Transformations (Ladder of Powers) - Meaning & Definition

Published in Statistics by MBA Skool Team

What is Transformations (Ladder of Powers)?

The pbjective of the transformation was to promote symmetry and linearity relationships. It deals with the non-normality of data and the non-homogenous nature of variance.

The power of transformations form the following ladder – x-2, x-1, x-1/2, log x, x1/2, x, x2, x3, and so on where x>1.

For example, when a square root transformation is used on poisson data, the approximate transformation would result in a data that follows a normal distribution.

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