Hi Gari, use --targ for a target volume (not a subject) to use as the template for the output. The target subject is actually stored in the register.dat file, so you can just spec --fstarg (no arguments)
doug

On 7/1/13 2:45 PM, Garikoitz Lerma-Usabiaga wrote:

Hi,
I want to obtain volume statistics from a ROI in fsaverage.

I have register.dat and a .nii file (the ROI), but I don't now how to get to the .label.

The last try has been:

mri_vol2vol --mov $SUBJECTS_DIR/fsaverage/label/ROI.nii

--o $SUBJECTS_DIR/fsaverage/label/ROI.mgh

--reg $SUBJECTS_DIR/fsaverage/mri/transforms/my_own_register_created_with_bbregister.dat --targ fsaverage

(but it is failing, error:

corRead(): can't open file $SUBJECTS_DIR/fsaverage/COR-.info)

My next steps were:

cor2label (in fsaverage)

mri_label2label (per every subject)

mri_segstats (per every subject)

Is there any simpler method to accomplish the same? Or at least that it works?

many thanks,

Gari
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