transformation_box_cox: Box-Cox transformation object
In power.transform: Location and Scale Invariant Power Transformations

transformationBoxCox-class

R Documentation

Box-Cox transformation object

This class is used for Box-Cox transformations.

method: Main transformation method, i.e. "box_cox".
robust: Indicates whether a robust version of the Box-Cox transformation is used to set transformation parameters. The value depends on the robust argument of the find_transformation_parameters function.
lambda: Numeric lambda parameter for the Box-Cox transformation.
shift: Numeric shift parameter for the Box-Cox transformation. The value depends on the data used for setting transformation parameters. If all data are strictly positive, shift has a value of 0.0. When negative or zero values are present, data are shifted to be strictly positive. If invariant=TRUE in the find_transformation_parameters function, lambda, shift and scale parameters are optimised simultaneously.
scale: Numeric scale parameter for the Box-Cox transformation. If invariant=TRUE in the find_transformation_parameters function, lambda, shift and scale parameters are optimised simultaneously. Otherwise, the scale parameter has a value of 1.0.
complete: Indicates whether transformation parameters were set.