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 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.
