The Folded Power transformation creates a new dataset where the variables have been transformed according to the following transformation:


    P          p
(2Y)  -  (2-2Y)
________________  for p <> 0
         2p

log(Y)-log(1-y) 
_______________   for p = 0
        2


Where p is controlled by a slider in a visualization specially designed to evaluate the asymmetry and linearity of the variables in the dataset after the transformation. This transformation is appropriate for proportions or percentages or for variables that need transformations that work on both sides of its distribution.
