[R] Confidence intervals of log transformed data

Greg Snow Greg.Snow at imail.org
Wed Dec 17 16:18:40 CET 2008

The boxcox function in the MASS package computes these intervals.  If you want to see how it computes the interval you can look at the source code.  MASS the book also describes the general process.

Hope this helps,

Gregory (Greg) L. Snow Ph.D.
Statistical Data Center
Intermountain Healthcare
greg.snow at imail.org

> -----Original Message-----
> From: r-help-bounces at r-project.org [mailto:r-help-bounces at r-
> project.org] On Behalf Of Eoin Barry
> Sent: Wednesday, December 17, 2008 7:24 AM
> To: r-help at r-project.org
> Subject: Re: [R] Confidence intervals of log transformed data
> Hello,
>  I was wondering if you could tell me how to calculate 95% confidence
> intervals for lambda for a box-cox power transformation.
> Best wishes
> Eoin
>         [[alternative HTML version deleted]]
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