the 'generate stats data tables' button in the Subjects tab will do
this. see the section 'Stats Data Import' in the tutorial:
https://surfer.nmr.mgh.harvard.edu/fswiki/FsTutorial/QdecGroupAnalysis
which is copied here:
> It is possible to import the aseg and aparc data from the
> FreeSurfer-processed group data. To do so, press the 'Generate Stats
> Data Tables' button. This will run the FreeSurfer utilities
> asegstats2table and aparcstats2table on your group data. Upon
> completion (you should see the progress in the terminal screen), then
> the 'Generate Stats Data Tables' button becomes a menu-selection list.
> Within that menu, you can select 'aseg.volume'. Upon doing so, the
> volumetric data for various subcortical structures are displayed. You
> could choose for example 'Left-Lateral-Ventricle', then click 'Add
> Selection to Data Table'. Upon doing so, it will appear in the
> 'Discrete and Continuous Factors' display of the 'Data Table View'.
> 'Left-Lateral-Ventricle' is now available as a possible factor in your
> analysis ('Left-Hippocampus' and 'Right-Hippocampus' were imported
> from aseg.volume in this manner). If you select
> 'Left-Lateral-Ventricle' in the 'Data Table View', then the volumetric
> data for all the subjects is plotted. You can look for patterns or
> outliers. If you suspect an outlier, right-click on that point in the
> scatter-plot. You can then either exclude that subject, or examine it
> in tkmedit or tksurfer, to check for possible problems in the original
> scan data. Lastly, you can save this newly imported data (in this
> case, 'Left-Lateral-Ventricle') to your qdec.table.dat file by
> selecting 'Save Data Table' from the File menu (but dont do this for
> the tutorial).
>
n.
On Thu, 2011-07-07 at 09:18 -0400, Ignacio Letelier wrote:
> Hi freesurfers
>
> Do anyone know if it's possible to automatically enter in the QDEC
> table the gray matter volume of every subject in the study, to avoid
> entering this item manually for each one ?
>
> Best regards.
> --
> Ignacio.
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