Hi Nick and Doug,
Can you suggest an alternative way if QDEC is unable to handle a single group?
I would like to run these analyses to address reviewers comments.
Best,
Manish
________________________________
From: Douglas Greve <gr...@nmr.mgh.harvard.edu>
To: Manish Dalwani <manishdalw...@yahoo.com>
Cc: "freesurfer@nmr.mgh.harvard.edu" <freesurfer@nmr.mgh.harvard.edu>
Sent: Thursday, June 20, 2013 11:16 PM
Subject: Re: [Freesurfer] Help with QDEC error
I thought it would have worked with a single group. Maybe Nick knows
of the top of his head.
doug
On 6/20/13 12:36 PM, Manish Dalwani wrote:
Hi Doug and Freesurfers,
>
>
>I realized that I hadn't updated my group levels to one group. However, when I
>do that..the qdec complains about group.level having at minimum two levels.
>How can I run (using QDEC) single group regression?
>
>
>Thanks,
>Manish
>
>
>
>________________________________
> From: Manish Dalwani <manishdalw...@yahoo.com>
>To: Douglas Greve <gr...@nmr.mgh.harvard.edu>;
>"freesurfer@nmr.mgh.harvard.edu" <freesurfer@nmr.mgh.harvard.edu>
>Sent: Thursday, June 20, 2013 1:26 PM
>Subject: Re: [Freesurfer] Help with QDEC error
>
>
>
>Hi Doug,
>
>
>I was out of town for a conference. Please see my attachments. I have the log
>file and screenshots of ill-matrix conditioning.
>Thanks for your help!
>Manish
>
>
>
>________________________________
> From: Douglas Greve <gr...@nmr.mgh.harvard.edu>
>To: freesurfer@nmr.mgh.harvard.edu
>Sent: Saturday, June 15, 2013 11:09 AM
>Subject: Re: [Freesurfer] Help with QDEC error
>
>
>
>
>Can you send the mri_glmfit.log file from
>/Applications/freesurfer/subjects/qdec/Untitled ?
>doug
>
>
>
>On 6/14/13 4:57 PM, Manish Dalwani wrote:
>
>Hello Freesurfers,
>>
>>
>>I am trying to run regression analyses within patients and one variable of
>>interest which adjusting for the nuisance variables age, IQ, thickness. When
>>i select the group and the CD (variable of interest) and run analyses (DODS),
>>I get the following error:
>>
>>
>>Qdec 1.4 (Qdec1.4)
>>
>>
>>Type: Error
>>Time: Fri Jun 14 14:49:37 2013
>>Description: Error in Analyze: command failed: mri_glmfit --y
>>/Applications/freesurfer/subjects/qdec/Untitled/y.mgh --fsgd
>>/Applications/freesurfer/subjects/qdec/Untitled/qdec.fsgd dods --glmdir
>>/Applications/freesurfer/subjects/qdec/Untitled --surf fsaverage lh --C
>>/Applications/freesurfer/subjects/qdec/Untitled/contrasts/lh-Avg-Intercept-thickness.mat
>> --C
>>/Applications/freesurfer/subjects/qdec/Untitled/contrasts/lh-Avg-thickness-CD-Cor.mat
>> --C
>>/Applications/freesurfer/subjects/qdec/Untitled/contrasts/lh-Diff-CONTROLS-PATIENTS-Intercept-thickness.mat
>> --C
/Applications/freesurfer/subjects/qdec/Untitled/contrasts/lh-Diff-CONTROLS-PATIENTS-Cor-thickness-CD.mat
>>
>>
>>Please advice!
>>
>>
>>Regards,
>>Manish Dalwani
>>Instructor
>>Dept. of Psychiatry
>>University of Colorado
>>
>>
>>_______________________________________________
Freesurfer mailing list Freesurfer@nmr.mgh.harvard.edu
https://mail.nmr.mgh.harvard.edu/mailman/listinfo/freesurfer
>
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