It was brought to my attention that the previous link was broken. Here is a corrected link: http://onlinelibrary.wiley.com/doi/10.1046/j.1365-2656.2002.00618.x/abstract
The paper reference is: On the misuse of residuals in ecology: regression of residuals vs. multiple regression 1. Robert P. Freckleton* Article first published online: 8 MAY 2002 DOI: 10.1046/j.1365-2656.2002.00618.x Issue [image: Journal of Animal Ecology] Journal of Animal Ecology Volume 71, Issue 3, <http://onlinelibrary.wiley.com/doi/10.1111/jae.2002.71.issue-3/issuetoc>pages 542–545, May 2002 Best Regards, Donald McLaren ================= D.G. McLaren, Ph.D. Research Fellow, Department of Neurology, Massachusetts General Hospital and Harvard Medical School Postdoctoral Research Fellow, GRECC, Bedford VA Website: http://www.martinos.org/~mclaren Office: (773) 406-2464 ===================== This e-mail contains CONFIDENTIAL INFORMATION which may contain PROTECTED HEALTHCARE INFORMATION and may also be LEGALLY PRIVILEGED and which is intended only for the use of the individual or entity named above. If the reader of the e-mail is not the intended recipient or the employee or agent responsible for delivering it to the intended recipient, you are hereby notified that you are in possession of confidential and privileged information. Any unauthorized use, disclosure, copying or the taking of any action in reliance on the contents of this information is strictly prohibited and may be unlawful. If you have received this e-mail unintentionally, please immediately notify the sender via telephone at (773) 406-2464 or email. On Wed, Mar 27, 2013 at 3:46 PM, MCLAREN, Donald <mclaren.don...@gmail.com>wrote: > Here is a link describing the difference in the methods: > > http://onlinelibrary.wiley.com/store/10.1046/j.1365-2656.2002.00618.x/asset/j.1365-2656.2002.00618.x.pdf?v=1&t=heswinwb&s=dce1a222e16e861d105340fd919c65fb43dc39ac > > Best Regards, Donald McLaren > ================= > D.G. McLaren, Ph.D. > Research Fellow, Department of Neurology, Massachusetts General Hospital > and > Harvard Medical School > Postdoctoral Research Fellow, GRECC, Bedford VA > Website: http://www.martinos.org/~mclaren > Office: (773) 406-2464 > ===================== > This e-mail contains CONFIDENTIAL INFORMATION which may contain PROTECTED > HEALTHCARE INFORMATION and may also be LEGALLY PRIVILEGED and which is > intended only for the use of the individual or entity named above. If the > reader of the e-mail is not the intended recipient or the employee or agent > responsible for delivering it to the intended recipient, you are hereby > notified that you are in possession of confidential and privileged > information. Any unauthorized use, disclosure, copying or the taking of any > action in reliance on the contents of this information is strictly > prohibited and may be unlawful. If you have received this e-mail > unintentionally, please immediately notify the sender via telephone at > (773) > 406-2464 or email. > > > On Wed, Mar 27, 2013 at 3:39 PM, Douglas N Greve < > gr...@nmr.mgh.harvard.edu> wrote: > >> >> In the 2nd option, age and weight (and other variables) are >> simultaneously fit to the data. Most people refer to this as "regressing >> out" the effect of one variable when looking at the other. But it is not >> regressing out age and then looking at the correlation of age with the >> residual. >> doug >> >> >> On 03/27/2013 07:02 AM, Martijn Steenwijk wrote: >> > Dear all, >> > >> > I've a question regarding computing correlations with cortical >> > thicknesses on the surface; Suppose I have two variables for each >> > subject: (age and weight) and I want to compute the correlation >> > between cortical thickness and weight, corrected for age. >> > >> > Option 1: >> > Fsgd contains: Variables weight >> > Contrast file contains: 0 1 >> > >> > Option 2: >> > Fsgd contains: Variables age weight >> > Contrast file contains: 0 0 1 >> > >> > Is it true that the effect of age is regressed out in the second >> > option; and it computes the correlation between CT and weight after >> > correcting for age? >> > >> > Best, >> > Martijn >> > >> > >> > >> > _______________________________________________ >> > Freesurfer mailing list >> > Freesurfer@nmr.mgh.harvard.edu >> > https://mail.nmr.mgh.harvard.edu/mailman/listinfo/freesurfer >> >> -- >> Douglas N. Greve, Ph.D. >> MGH-NMR Center >> gr...@nmr.mgh.harvard.edu >> Phone Number: 617-724-2358 >> Fax: 617-726-7422 >> >> Bugs: surfer.nmr.mgh.harvard.edu/fswiki/BugReporting >> FileDrop: www.nmr.mgh.harvard.edu/facility/filedrop/index.html >> Outgoing: ftp://surfer.nmr.mgh.harvard.edu/transfer/outgoing/flat/greve/ >> >> _______________________________________________ >> Freesurfer mailing list >> Freesurfer@nmr.mgh.harvard.edu >> https://mail.nmr.mgh.harvard.edu/mailman/listinfo/freesurfer >> >> >> The information in this e-mail is intended only for the person to whom it >> is >> addressed. If you believe this e-mail was sent to you in error and the >> e-mail >> contains patient information, please contact the Partners Compliance >> HelpLine at >> http://www.partners.org/complianceline . If the e-mail was sent to you >> in error >> but does not contain patient information, please contact the sender and >> properly >> dispose of the e-mail. >> >> >
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