Dear Des,
The following should do the trick:
invBoxCox <- function(x, lambda)
if (lambda == 0) exp(x) else (lambda*x + 1)^(1/lambda)
I hope this helps,
John
--------------------------------
John Fox, Professor
Department of Sociology
McMaster University
Hamilton, Ontario
Canada L8S 4M4
905-525-9140x23604
http://socserv.mcmaster.ca/jfox
--------------------------------
> -----Original Message-----
> From: [EMAIL PROTECTED]
> [mailto:[EMAIL PROTECTED] On Behalf Of Des Callaghan
> Sent: Monday, June 18, 2007 3:33 AM
> To: [email protected]
> Subject: [R] Inverse BoxCox transformation
>
> Hi,
>
> I can't seem to find a function in R that will reverse a
> BoxCox transformation. Can somebody help me locate one
> please? Thanks in advance.
>
> Best wishes,
> Des
>
>
> [[alternative HTML version deleted]]
>
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>
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PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.
