I stand corrected - thank you for the clarification John.
----------------Contact Details:------------------------------------------------------- Contact me: tal.gal...@gmail.com | 972-52-7275845 Read me: www.talgalili.com (Hebrew) | www.biostatistics.co.il (Hebrew) | www.r-statistics.com (English) ---------------------------------------------------------------------------------------------- On Tue, Feb 7, 2012 at 4:12 PM, John Fox <j...@mcmaster.ca> wrote: > Dear Tal and Rosario, > > The bcPower() function in the car package computes Box-Cox power > transformations; boxcox() in the MASS package estimates the response > transformation parameter for the Box-Cox regression model (actually the > profile log-likelihood for a range of variables of the parameter). The two > functions do different things. The boxCox() function in the car package is > a > slight generalization of boxcox(), allowing for other families of > transformations than the Box-Cox powers; the powerTransform() function in > the car package is more general still, in that it will handle multivariate > transformations, both conditional (like the Box-Cox regression model) and > unconditional. > > bcPower() was named box.cox() in earlier versions of the car package, > associated with the first edition of the R [and S-PLUS] Companion to > Applied > Regression. In newer versions of the package, associated with the second > edition of the book, written with Sandy Weisberg, this and other functions > have been renamed to remove periods in function names. The older, > "deprecated," names of the functions are retained as a courtesy to readers > of the first edition. > > Best, > John > > -------------------------------- > John Fox > Senator William McMaster > Professor of Social Statistics > Department of Sociology > McMaster University > Hamilton, Ontario, Canada > http://socserv.mcmaster.ca/jfox > > > > > -----Original Message----- > > From: r-help-boun...@r-project.org [mailto:r-help-bounces@r- > > project.org] On Behalf Of Tal Galili > > Sent: February-07-12 2:50 AM > > To: Rosario Garcia Gil > > Cc: r-help@R-project.org > > Subject: Re: [R] box.cox > > > > Use: > > > > library(MASS) > > ?boxcox > > > > > > ----------------Contact > > Details:------------------------------------------------------- > > Contact me: tal.gal...@gmail.com | 972-52-7275845 Read me: > > www.talgalili.com (Hebrew) | www.biostatistics.co.il (Hebrew) | www.r- > > statistics.com (English) > > ---------------------------------------------------------------------- > > ------------------------ > > > > > > > > > > On Tue, Feb 7, 2012 at 8:47 AM, Rosario Garcia Gil > > <m.rosario.gar...@slu.se>wrote: > > > > > Hello > > > > > > I am using box.cox() and I get this error message: > > > > > > Warning message: > > > 'box.cox' is deprecated. > > > Use 'bcPower' instead. > > > See help("Deprecated") and help("car-deprecated"). > > > > > > > > > I went to help but I did not understand the explanation, I am still > > > wondering what is really happening. > > > > > > Thanks > > > /R > > > ______________________________________________ > > > 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. > > > > > > > [[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. > > [[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.
