As the error message says, you can only have two levels. With 3 levels, 
you must use the "command line" stream, ie, mris_preproc, mri_surf2surf, 
mri_glmfit, and mri_glmfit-sim. There are tutorials on the wiki.

On 01/20/2016 08:53 AM, BAUTISTA-PERPINYA Maximilià wrote:
> Thank you for the reply Douglas,
>
> Factor 1 (diagnosis) has 3 levels (BPD, CCP, NPC). I created using the vi 
> editor, one line for each level. Same as factor 2.
>
> Max
>
>   
>   
> On dijous 14 gener 2016 22:20 CET, Douglas N Greve 
> <[email protected]> wrote:
>   
>> how many levels does factor 1 have? How did you make the factor file?>
>> On 01/14/2016 05:30 AM, BAUTISTA-PERPINYA Maximilià wrote:
>>> Hi there experts,
>>>
>>> I'm runing qdec to analyze my subject data. I am able to import the 
>>> qdec.table.dat, but the problem comes in the Design step. I select 
>>> 'Volume-based' measure, 'Diagnosis' as my discrete independent variable and 
>>> 'LeftAmygdala' as the continuous variable. I don't select any nuisance 
>>> factor. I then set my Design Name: 'LAmyDiagnosis' and click Analyze, but 
>>> gives me the following error:
>>>
>>> ---------------------------------------------------------------------------------------------------------------
>>>
>>> ERROR: QdecGlmDesign::GenerateContrasts: factor 1 must have 2 levels
>>> ninputs = 137
>>> Checking inputs
>>> nframestot = 137
>>> Allocing output
>>> Done allocing
>>> nframes = 137
>>> Writing to 
>>> /home/freesurfer/Desktop/test005/subjects/qdec/LAmyDiagnosis/y.mgh
>>> gdfReadHeader: reading 
>>> /home/freesurfer/Desktop/test005/subjects/qdec/LAmyDiagnosis/qdec.fsgd
>>> INFO: DeMeanFlag keyword not found, DeMeaning will NOT be done.
>>> Continuous Variable Means (all subjects)
>>> 0 LeftAmygdala 1502.65 189.974
>>> Class Means of each Continuous Variable
>>> 1 diagnosisBPD 1497.7548
>>> 2 diagnosisCCP 1540.8923
>>> 3 diagnosisNPC 1488.5490
>>> INFO: gd2mtx_method is dods
>>> Reading source surface 
>>> /home/freesurfer/Desktop/test005/subjects/fsaverage/surf/lh.white
>>> ERROR: no contrasts specified.
>>> Error in Analyze: command failed: mri_glmfit --y 
>>> /home/freesurfer/Desktop/test005/subjects/qdec/LAmyDiagnosis/y.mgh --fsgd 
>>> /home/freesurfer/Desktop/test005/subjects/qdec/LAmyDiagnosis/qdec.fsgd dods 
>>> --glmdir /home/freesurfer/Desktop/test005/subjects/qdec/LAmyDiagnosis 
>>> --surf fsaverage lh
>>>
>>> ---------------------------------------------------------------------------------------------------------------
>>>
>>> Any recommendations? Any help is much appreciated :)
>>>
>>>
>>> Best,
>>>
>>> Max
>>>
>>> _______________________________________________> > 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
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>>
>>
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>   

-- 
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/

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