Hi Chris, the error was very unpredicatable. If you want to see whether it was wrong or not, you can look at the contrast matrix it created (C.dat in the contrast folder). doug
On 02/25/2015 07:11 AM, Christoph Abé wrote: > Hello, > > I am dealing again with the "old" issue of using DOSS in QDEC. This > option was removed. I cannot find any detailed explanations of what > exactly was wrongly computed when selecting DOSS. I only find as > explanation: > > "that there *may be* a bug in the way that QDEC computes contrasts for > DOSS" > > "There is a bug in it that causes the contrasts to be in error *at times*" > > Which specific contrasts were actually affected? > And how did it compute it instead of what? > Did it happen all the time, or only sometimes, and why? > > *Most important for me: *Did it affect a group comparison using > (nuisance) covariates? > Or were the other additional correlation and interaction contrasts the > ones which did not make sense? > > Would be nice to get some more insight into this. > > Thank you, > Chris > > > _______________________________________________ > 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: https://gate.nmr.mgh.harvard.edu/filedrop2 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.
