Hello,
I would like to conduct an analysis using mri_glmfit but I'm getting this error: ERROR: matrix is ill-conditioned or badly scaled, condno = 1e+08
My command was: mri_glmfit --y lh.area.fwhm10.fsaverage.mgh --fsgd finalgroupanalysis.fsgd dods --C group_effect.mtx --surf fsaverage lh --cortex --glmdir lh.surfacearea.glmdir
My FSGD file is attached. It contains 3 classes and 1 variable (age).
And my design matrix is 1 -1 0 0 0 0 1 0 -1 0 0 0
Please help!
Thank you for your time, Wanda
The fsgd file appears to have been created using a windows program (or mac program that saves in windows format). Is that correct? I've attached a linux-compatible version. Let me know if that works. doug
On 03/11/2014 12:19 PM, Wanda Truong wrote:
Hello,
I would like to conduct an analysis using mri_glmfit but I'm getting this error: ERROR: matrix is ill-conditioned or badly scaled, condno = 1e+08
My command was: mri_glmfit --y lh.area.fwhm10.fsaverage.mgh --fsgd finalgroupanalysis.fsgd dods --C group_effect.mtx --surf fsaverage lh --cortex --glmdir lh.surfacearea.glmdir
My FSGD file is attached. It contains 3 classes and 1 variable (age).
And my design matrix is 1 -1 0 0 0 0 1 0 -1 0 0 0
Please help!
Thank you for your time, Wanda
-- Wanda Truong, MSc
Freesurfer mailing list Freesurfer@nmr.mgh.harvard.edu https://mail.nmr.mgh.harvard.edu/mailman/listinfo/freesurfer
Hi Doug,
Thanks for the new fsgd file - it solved the error. However, now I get a different error:
ERROR: dimension mismatch between y and X. y has 46 inputs, X has 71 rows.
which is similar to the error I got when I tried to do this analysis in QDEC. I've attached my Xg.dat. I'm not sure what it's supposed to look like. I want to compare the three groups while regressing out age.
Thank you!
On 11 March 2014 10:37, Douglas N Greve greve@nmr.mgh.harvard.edu wrote:
The fsgd file appears to have been created using a windows program (or mac program that saves in windows format). Is that correct? I've attached a linux-compatible version. Let me know if that works. doug
On 03/11/2014 12:19 PM, Wanda Truong wrote:
Hello,
I would like to conduct an analysis using mri_glmfit but I'm getting this error: ERROR: matrix is ill-conditioned or badly scaled, condno = 1e+08
My command was: mri_glmfit --y lh.area.fwhm10.fsaverage.mgh --fsgd finalgroupanalysis.fsgd dods --C group_effect.mtx --surf fsaverage lh --cortex --glmdir lh.surfacearea.glmdir
My FSGD file is attached. It contains 3 classes and 1 variable (age).
And my design matrix is 1 -1 0 0 0 0 1 0 -1 0 0 0
Please help!
Thank you for your time, Wanda
-- Wanda Truong, MSc
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 greve@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.
how did you create the input lh.area.fwhm10.fsaverage.mgh? How many subjects does it have in it? The error means that the FSGD file has a different number of Input lines than the lh.area file has subjects
On 03/11/2014 02:45 PM, Wanda Truong wrote:
Hi Doug,
Thanks for the new fsgd file - it solved the error. However, now I get a different error:
ERROR: dimension mismatch between y and X. y has 46 inputs, X has 71 rows.
which is similar to the error I got when I tried to do this analysis in QDEC. I've attached my Xg.dat. I'm not sure what it's supposed to look like. I want to compare the three groups while regressing out age.
Thank you!
On 11 March 2014 10:37, Douglas N Greve <greve@nmr.mgh.harvard.edu mailto:greve@nmr.mgh.harvard.edu> wrote:
The fsgd file appears to have been created using a windows program (or mac program that saves in windows format). Is that correct? I've attached a linux-compatible version. Let me know if that works. doug On 03/11/2014 12:19 PM, Wanda Truong wrote: Hello, I would like to conduct an analysis using mri_glmfit but I'm getting this error: ERROR: matrix is ill-conditioned or badly scaled, condno = 1e+08 My command was: mri_glmfit --y lh.area.fwhm10.fsaverage.mgh --fsgd finalgroupanalysis.fsgd dods --C group_effect.mtx --surf fsaverage lh --cortex --glmdir lh.surfacearea.glmdir My FSGD file is attached. It contains 3 classes and 1 variable (age). And my design matrix is 1 -1 0 0 0 0 1 0 -1 0 0 0 Please help! Thank you for your time, Wanda -- Wanda Truong, MSc _______________________________________________ Freesurfer mailing list Freesurfer@nmr.mgh.harvard.edu <mailto:Freesurfer@nmr.mgh.harvard.edu> https://mail.nmr.mgh.harvard.edu/mailman/listinfo/freesurfer -- Douglas N. Greve, Ph.D. MGH-NMR Center greve@nmr.mgh.harvard.edu <mailto:greve@nmr.mgh.harvard.edu> Phone Number: 617-724-2358 <tel:617-724-2358> Fax: 617-726-7422 <tel:617-726-7422> Bugs: surfer.nmr.mgh.harvard.edu/fswiki/BugReporting <http://surfer.nmr.mgh.harvard.edu/fswiki/BugReporting> FileDrop: https://gate.nmr.mgh.harvard.edu/filedrop2 www.nmr.mgh.harvard.edu/facility/filedrop/index.html <http://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 <mailto: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.-- Wanda Truong, MSc
Freesurfer mailing list Freesurfer@nmr.mgh.harvard.edu https://mail.nmr.mgh.harvard.edu/mailman/listinfo/freesurfer
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Wanda Truong