Re: [R] Confidence intervals of log transformed data

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

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.et

Re: [R] Confidence intervals of log transformed data

Rubén Roa-Ureta wrote: > tom soyer wrote: >> Hi >> >> I have a general statistics question on calculating confidence interval of >> log transformed data. >> >> I log transformed both x and y, regressed the transformed y on transformed >> x: lm(log(y)~log(x)), and I get the following relationship:

Re: [R] Confidence intervals of log transformed data

tom soyer wrote: > Hi > > I have a general statistics question on calculating confidence interval of > log transformed data. > > I log transformed both x and y, regressed the transformed y on transformed > x: lm(log(y)~log(x)), and I get the following relationship: > > log(y) = alpha + beta * l