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.s...@imail.org 801.408.8111 > -----Original Message----- > From: r-help-boun...@r-project.org [mailto:r-help-boun...@r- > project.org] On Behalf Of Eoin Barry > Sent: Wednesday, December 17, 2008 7:24 AM > To: r-help@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]] > > ______________________________________________ > R-help@r-project.org mailing list > https://stat.ethz.ch/mailman/listinfo/r-help > PLEASE do read the posting guide http://www.R-project.org/posting- > guide.html > and provide commented, minimal, self-contained, reproducible code. ______________________________________________ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
