On Wed, Nov 11, 2015 at 8:48 PM, Heidi Foo <heidifoo92@gmail.com> wrote:

Hi Dr Greve,

Thank you for your advice, it is deeply appreciated. I removed the blank lines of wmh.levels and included a carriage return at the end of the long.qdec.table.txt.

However, there is still error in analyze: Couldn't open /Users/nnidementia/Documents/PDFS/FS_PD002_1.nii/surf/lh.thickness.fwhm10.fsaverage.mgz or .mgh file.

I checked my qdec.table.txt (both cross and long) but I did not see any fsaverage included in the list of subjects. Am I missing something?

Thank you.

Regards,

Heidi Foo

On Wed, Nov 11, 2015 at 12:28 AM, Douglas N Greve <greve@nmr.mgh.harvard.edu> wrote:

Also, try removing the blank line at the end of wmh.levels, and make sure you have a carriage return at the end of long.qdec.table.txt. This may fix the 2nd error

On 11/09/2015 10:38 PM, Heidi Foo wrote:

Dear Dr Greve,

Thanks for your reply. I have already linked fsaverage to my SUBJECTS_DIR but the error still persists.

Attached is my qdec (long and cross) files.

Thanks.

Regards,
Heidi Foo

On Tue, Nov 10, 2015 at 6:36 AM, Douglas N Greve <greve@nmr.mgh.harvard.edu <mailto:greve@nmr.mgh.harvard.edu>> wrote:

On 11/06/2015 09:35 PM, Heidi Foo wrote:

Dear FreeSurfer experts,

I am trying to compare between stable WMH group and rapid
progressed WMH group in regards to the cortical thickness as
well as volume changes in the gray matter. The nuisance
variable in my case is age. I ran my analysis using QDEC but
encountered a few problems:

1. There is error in analyze: couldn't open file

It looks like it cannot find fsaverage. Link it to your
SUBJECTS_DIR if you have not already.

2. If this error doesn't appear, another one does.
QdecGlmDesign::Create: zero factors!
(Attached the screenshot of the errors for your perusal)

please send the qdec file

I am hoping that you could give me a solution to my problems.

Thank you so much.

Regards,
Heidi

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