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 greve@nmr.mgh.harvard.edu 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
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