Try removing the mean from the age. By this I mean to compute the mean age over all subjects regardless of group, then subtract the mean from all ages. doug
On 07/29/2014 02:39 PM, Jon Alan Wieser wrote: > > I'm getting the following erorr when running Qdec "Analyze" > > Model Factors: > > > Discrete (fixed factors) > > ADHD_Persist > > MJ_group > > Nuisance factor: > > Age > > > ERROR: matrix is ill-conditioned or badly scaled, condno = 10355.4 > -------------------------------- > Possible problem with experimental design: > Check for duplicate entries and/or lack of range of > continuous variables within a class. > > If you seek help with this problem, make sure to send: > 1. Your command line: > mri_glmfit --y /Studies/MTA/qdec/MTA_persistanceCD/y.mgh --fsgd > /Studies/MTA/qdec/MTA_persistanceCD/qdec.fsgd dods --glmdir > /Studies/MTA/qdec/MTA_persistanceCD --surf fsaverage rh --label > /Studies/MTA/fsaverage/label/rh.aparc.label --C > /Studies/MTA/qdec/MTA_persistanceCD/contrasts/rh-Avg-Intercept-thickness.mat > --C > /Studies/MTA/qdec/MTA_persistanceCD/contrasts/rh-Diff-C-D-Intercept-thickness.mat > > --C > /Studies/MTA/qdec/MTA_persistanceCD/contrasts/rh-Diff-Control-MJuser-Intercept-thickness.mat > > --C > /Studies/MTA/qdec/MTA_persistanceCD/contrasts/rh-X-ADHD_Persist-MJ_group-Intercept-thickness.mat > 2. The FSGD file (if using one) > 3. And the design matrix above > Error in Analyze: command failed: mri_glmfit --y > /Studies/MTA/qdec/MTA_persistanceCD/y.mgh --fsgd > /Studies/MTA/qdec/MTA_persistanceCD/qdec.fsgd dods --glmdir > /Studies/MTA/qdec/MTA_persistanceCD --surf fsaverage rh --label > /Studies/MTA/fsaverage/label/rh.aparc.label --C > /Studies/MTA/qdec/MTA_persistanceCD/contrasts/rh-Avg-Intercept-thickness.mat > --C > /Studies/MTA/qdec/MTA_persistanceCD/contrasts/rh-Diff-C-D-Intercept-thickness.mat > > --C > /Studies/MTA/qdec/MTA_persistanceCD/contrasts/rh-Diff-Control-MJuser-Intercept-thickness.mat > > --C > /Studies/MTA/qdec/MTA_persistanceCD/contrasts/rh-X-ADHD_Persist-MJ_group-Intercept-thickness.mat > > > > > > command line: > > mri_glmfit --y /Studies/MTA/qdec/MTA_persistanceCD/y.mgh --fsgd > /Studies/MTA/qdec/MTA_persistanceCD/qdec.fsgd dods --glmdir > /Studies/MTA/qdec/MTA_persistanceCD --surf fsaverage rh --label > /Studies/MTA/fsaverage/label/rh.aparc.label --C > /Studies/MTA/qdec/MTA_persistanceCD/contrasts/rh-Avg-Intercept-thickness.mat > --C > /Studies/MTA/qdec/MTA_persistanceCD/contrasts/rh-Diff-C-D-Intercept-thickness.mat > > --C > /Studies/MTA/qdec/MTA_persistanceCD/contrasts/rh-Diff-Control-MJuser-Intercept-thickness.mat > > --C > /Studies/MTA/qdec/MTA_persistanceCD/contrasts/rh-X-ADHD_Persist-MJ_group-Intercept-thickness.mat > > > > no FSGD file > > > I have attached the qdec dat file > > > > > design matrix: > > Design matrix ------------------ > 1.000 0.000 0.000 0.000 25.000 0.000 0.000 0.000; > 1.000 0.000 0.000 0.000 24.000 0.000 0.000 0.000; > 1.000 0.000 0.000 0.000 22.000 0.000 0.000 0.000; > 1.000 0.000 0.000 0.000 23.000 0.000 0.000 0.000; > 1.000 0.000 0.000 0.000 24.000 0.000 0.000 0.000; > 0.000 0.000 1.000 0.000 0.000 0.000 25.000 0.000; > 1.000 0.000 0.000 0.000 23.000 0.000 0.000 0.000; > 1.000 0.000 0.000 0.000 21.000 0.000 0.000 0.000; > 0.000 0.000 1.000 0.000 0.000 0.000 21.000 0.000; > 0.000 1.000 0.000 0.000 0.000 25.000 0.000 0.000; > 0.000 1.000 0.000 0.000 0.000 23.000 0.000 0.000; > 0.000 0.000 1.000 0.000 0.000 0.000 26.000 0.000; > 0.000 0.000 1.000 0.000 0.000 0.000 23.000 0.000; > 1.000 0.000 0.000 0.000 24.000 0.000 0.000 0.000; > 0.000 0.000 1.000 0.000 0.000 0.000 25.000 0.000; > 0.000 0.000 1.000 0.000 0.000 0.000 22.000 0.000; > 1.000 0.000 0.000 0.000 23.000 0.000 0.000 0.000; > 0.000 0.000 1.000 0.000 0.000 0.000 21.000 0.000; > 1.000 0.000 0.000 0.000 25.000 0.000 0.000 0.000; > 0.000 0.000 1.000 0.000 0.000 0.000 24.000 0.000; > 1.000 0.000 0.000 0.000 23.000 0.000 0.000 0.000; > 0.000 0.000 1.000 0.000 0.000 0.000 23.000 0.000; > 0.000 0.000 1.000 0.000 0.000 0.000 23.000 0.000; > 1.000 0.000 0.000 0.000 23.000 0.000 0.000 0.000; > 0.000 0.000 1.000 0.000 0.000 0.000 26.000 0.000; > 1.000 0.000 0.000 0.000 24.000 0.000 0.000 0.000; > 1.000 0.000 0.000 0.000 25.000 0.000 0.000 0.000; > 0.000 0.000 1.000 0.000 0.000 0.000 23.000 0.000; > 1.000 0.000 0.000 0.000 27.000 0.000 0.000 0.000; > 0.000 0.000 1.000 0.000 0.000 0.000 24.000 0.000; > 1.000 0.000 0.000 0.000 23.000 0.000 0.000 0.000; > 0.000 0.000 1.000 0.000 0.000 0.000 24.000 0.000; > 0.000 0.000 1.000 0.000 0.000 0.000 23.000 0.000; > 1.000 0.000 0.000 0.000 23.000 0.000 0.000 0.000; > 1.000 0.000 0.000 0.000 21.000 0.000 0.000 0.000; > 0.000 0.000 1.000 0.000 0.000 0.000 25.000 0.000; > 1.000 0.000 0.000 0.000 24.000 0.000 0.000 0.000; > 0.000 0.000 1.000 0.000 0.000 0.000 24.000 0.000; > 0.000 0.000 1.000 0.000 0.000 0.000 23.000 0.000; > 1.000 0.000 0.000 0.000 23.000 0.000 0.000 0.000; > 1.000 0.000 0.000 0.000 21.000 0.000 0.000 0.000; > 0.000 0.000 0.000 1.000 0.000 0.000 0.000 25.000; > 0.000 1.000 0.000 0.000 0.000 24.000 0.000 0.000; > 0.000 0.000 0.000 1.000 0.000 0.000 0.000 25.000; > 0.000 1.000 0.000 0.000 0.000 24.000 0.000 0.000; > 0.000 0.000 0.000 1.000 0.000 0.000 0.000 24.000; > 0.000 1.000 0.000 0.000 0.000 22.000 0.000 0.000; > 0.000 1.000 0.000 0.000 0.000 27.000 0.000 0.000; > 0.000 1.000 0.000 0.000 0.000 26.000 0.000 0.000; > 0.000 0.000 0.000 1.000 0.000 0.000 0.000 24.000; > 0.000 1.000 0.000 0.000 0.000 23.000 0.000 0.000; > 0.000 0.000 0.000 1.000 0.000 0.000 0.000 25.000; > 0.000 1.000 0.000 0.000 0.000 26.000 0.000 0.000; > 0.000 0.000 0.000 1.000 0.000 0.000 0.000 25.000; > 0.000 1.000 0.000 0.000 0.000 26.000 0.000 0.000; > 0.000 1.000 0.000 0.000 0.000 25.000 0.000 0.000; > 0.000 0.000 0.000 1.000 0.000 0.000 0.000 25.000; > 0.000 0.000 0.000 1.000 0.000 0.000 0.000 24.000; > 0.000 1.000 0.000 0.000 0.000 24.000 0.000 0.000; > 0.000 1.000 0.000 0.000 0.000 26.000 0.000 0.000; > 0.000 1.000 0.000 0.000 0.000 24.000 0.000 0.000; > 0.000 1.000 0.000 0.000 0.000 24.000 0.000 0.000; > > > > _______________________________________________ > Freesurfer mailing list > [email protected] > https://mail.nmr.mgh.harvard.edu/mailman/listinfo/freesurfer -- Douglas N. Greve, Ph.D. MGH-NMR Center [email protected] 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 [email protected] 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.
