| Library: | stats |
| See also: | twboxcox |
| Quantlet: | boxcoxdens | |
| Description: | shows the density before and after a Box-Cox transformation of x. |
| Usage: | boxcoxdens (x, p) | |
| Input: | ||
| x | n x q matrix of input variables | |
| p | scalar, parameter for the Box-Cox transformation (x^p-1)./p | |
; loads the library stats
library("stats")
; loads the library graphic
library("graphic")
; loads the library graphic
library("smoother")
; reset random generator
randomize(0)
; generate x(skewed)
x = 0.05+0.9.*uniform(250)
x = qfc(x, 2)
; show the densities
boxcoxdens(x, 0)
shows the density of the data before and after the Box-Cox transformation.